diff --git a/contracts/test-utils/src/web3_wrapper.ts b/contracts/test-utils/src/web3_wrapper.ts
index 9ac3dbbb42..c8e3efa66f 100644
--- a/contracts/test-utils/src/web3_wrapper.ts
+++ b/contracts/test-utils/src/web3_wrapper.ts
@@ -19,6 +19,7 @@ export let providerConfigs: Web3Config = {
     total_accounts: constants.NUM_TEST_ACCOUNTS,
     shouldUseInProcessGanache: true,
     shouldAllowUnlimitedContractSize: true,
+    hardfork: 'istanbul',
 };
 
 export const provider: Web3ProviderEngine = web3Factory.getRpcProvider(providerConfigs);
diff --git a/package.json b/package.json
index 1e7fe872cc..df0a5c57fa 100644
--- a/package.json
+++ b/package.json
@@ -82,7 +82,7 @@
         "async-child-process": "^1.1.1",
         "bundlewatch": "^0.2.1",
         "coveralls": "^3.0.0",
-        "ganache-cli": "6.4.1",
+        "ganache-cli": "6.8.0-istanbul.0",
         "lcov-result-merger": "^3.0.0",
         "lerna": "^3.0.0-beta.25",
         "npm-run-all": "^4.1.2",
diff --git a/packages/dev-utils/src/web3_factory.ts b/packages/dev-utils/src/web3_factory.ts
index e2750389ec..2ce3088175 100644
--- a/packages/dev-utils/src/web3_factory.ts
+++ b/packages/dev-utils/src/web3_factory.ts
@@ -25,6 +25,7 @@ export interface Web3Config {
     blockTime?: number;
     locked?: boolean;
     unlocked_accounts?: string[];
+    hardfork?: string;
 }
 
 export const web3Factory = {
@@ -81,6 +82,7 @@ export const web3Factory = {
                     blockTime: config.blockTime,
                     locked: config.locked,
                     unlocked_accounts: config.unlocked_accounts,
+                    hardfork: config.hardfork,
                 } as any), // TODO remove any once types are merged in DefinitelyTyped
             );
         } else {
diff --git a/packages/subproviders/package.json b/packages/subproviders/package.json
index 6b6f40c4ec..a0e4d3e687 100644
--- a/packages/subproviders/package.json
+++ b/packages/subproviders/package.json
@@ -47,7 +47,7 @@
         "ethereum-types": "^3.0.0",
         "ethereumjs-tx": "^1.3.5",
         "ethereumjs-util": "^5.1.1",
-        "ganache-core": "^2.6.0",
+        "ganache-core": "2.9.0-istanbul.0",
         "hdkey": "^0.7.1",
         "json-rpc-error": "2.0.0",
         "lodash": "^4.17.11",
diff --git a/yarn.lock b/yarn.lock
index c51ab50594..3e3e4d9582 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1903,6 +1903,11 @@
   dependencies:
     any-observable "^0.3.0"
 
+"@sindresorhus/is@^0.14.0":
+  version "0.14.0"
+  resolved "https://registry.npmjs.org/@sindresorhus/is/-/is-0.14.0.tgz#9fb3a3cf3132328151f353de4632e01e52102bea"
+  integrity sha512-9NET910DNaIPngYnLLPeg+Ogzqsi9uM4mSboU5y6p8S5DzMTVEsJZrawi+BoDNUVBa2DhJqQYUFvMDfgU062LQ==
+
 "@sinonjs/formatio@^2.0.0":
   version "2.0.0"
   resolved "https://registry.npmjs.org/@sinonjs/formatio/-/formatio-2.0.0.tgz#84db7e9eb5531df18a8c5e0bfb6e449e55e654b2"
@@ -1926,6 +1931,13 @@
     mime "^2.3.1"
     update-notifier "^2.5.0"
 
+"@szmarczak/http-timer@^1.1.2":
+  version "1.1.2"
+  resolved "https://registry.npmjs.org/@szmarczak/http-timer/-/http-timer-1.1.2.tgz#b1665e2c461a2cd92f4c1bbf50d5454de0d4b421"
+  integrity sha512-XIB2XbzHTN6ieIjfIMV9hlVcfPU26s2vafYWQcZHWXHOxiaRZYEDKEwdl129Zyg50+foYV2jCgtrqSA6qNuNSA==
+  dependencies:
+    defer-to-connect "^1.0.1"
+
 "@types/babel__core@^7.1.0":
   version "7.1.2"
   resolved "https://registry.yarnpkg.com/@types/babel__core/-/babel__core-7.1.2.tgz#608c74f55928033fce18b99b213c16be4b3d114f"
@@ -2620,6 +2632,11 @@ ansi-regex@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-4.0.0.tgz#70de791edf021404c3fd615aa89118ae0432e5a9"
 
+ansi-regex@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz#8b9f8f08cf1acb843756a839ca8c7e3168c51997"
+  integrity sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==
+
 ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
@@ -2946,6 +2963,13 @@ async@2.6.1, async@^2.1.4:
   dependencies:
     lodash "^4.17.10"
 
+async@2.6.2:
+  version "2.6.2"
+  resolved "https://registry.npmjs.org/async/-/async-2.6.2.tgz#18330ea7e6e313887f5d2f2a904bac6fe4dd5381"
+  integrity sha512-H1qVYh1MYhEEFLsP97cVKqCGo7KfCyTt6uEWqsTBr9SO84oK9Uwbyd/yCW+6rKJLHksBNUVWZDAjfS+Ccx0Bbg==
+  dependencies:
+    lodash "^4.17.11"
+
 async@^0.9.0, async@~0.9.0:
   version "0.9.2"
   resolved "https://registry.yarnpkg.com/async/-/async-0.9.2.tgz#aea74d5e61c1f899613bf64bda66d4c78f2fd17d"
@@ -4337,6 +4361,19 @@ cache-base@^1.0.1:
     union-value "^1.0.0"
     unset-value "^1.0.0"
 
+cacheable-request@^6.0.0:
+  version "6.1.0"
+  resolved "https://registry.npmjs.org/cacheable-request/-/cacheable-request-6.1.0.tgz#20ffb8bd162ba4be11e9567d823db651052ca912"
+  integrity sha512-Oj3cAGPCqOZX7Rz64Uny2GYAZNliQSqfbePrgAQ1wKAihYmCUnraBtJtKcGR4xz7wF+LoJC+ssFZvv5BgF9Igg==
+  dependencies:
+    clone-response "^1.0.2"
+    get-stream "^5.1.0"
+    http-cache-semantics "^4.0.0"
+    keyv "^3.0.0"
+    lowercase-keys "^2.0.0"
+    normalize-url "^4.1.0"
+    responselike "^1.0.2"
+
 cachedown@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/cachedown/-/cachedown-1.0.0.tgz#d43f036e4510696b31246d7db31ebf0f7ac32d15"
@@ -4761,10 +4798,26 @@ cliui@^4.0.0:
     strip-ansi "^4.0.0"
     wrap-ansi "^2.0.0"
 
+cliui@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.npmjs.org/cliui/-/cliui-5.0.0.tgz#deefcfdb2e800784aa34f46fa08e06851c7bbbc5"
+  integrity sha512-PYeGSEmmHM6zvoef2w8TPzlrnNpXIjTipYK780YswmIP9vjxmd6Y2a3CB2Ks6/AU8NHjZugXvo8w3oWM2qnwXA==
+  dependencies:
+    string-width "^3.1.0"
+    strip-ansi "^5.2.0"
+    wrap-ansi "^5.1.0"
+
 clone-buffer@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/clone-buffer/-/clone-buffer-1.0.0.tgz#e3e25b207ac4e701af721e2cb5a16792cac3dc58"
 
+clone-response@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.npmjs.org/clone-response/-/clone-response-1.0.2.tgz#d1dc973920314df67fbeb94223b4ee350239e96b"
+  integrity sha1-0dyXOSAxTfZ/vrlCI7TuNQI56Ws=
+  dependencies:
+    mimic-response "^1.0.0"
+
 clone-stats@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/clone-stats/-/clone-stats-1.0.0.tgz#b3782dff8bb5474e18b9b6bf0fdfe782f8777680"
@@ -5461,6 +5514,14 @@ d@1:
   dependencies:
     es5-ext "^0.10.9"
 
+d@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.npmjs.org/d/-/d-1.0.1.tgz#8698095372d58dbee346ffd0c7093f99f8f9eb5a"
+  integrity sha512-m62ShEObQ39CfralilEQRjH6oAMtNCV1xJyEx5LpRYUVN+EviphDgUc/F3hnYbADmkiNs67Y+3ylmlG7Lnu+FA==
+  dependencies:
+    es5-ext "^0.10.50"
+    type "^1.0.1"
+
 dargs@^4.0.1:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/dargs/-/dargs-4.1.0.tgz#03a9dbb4b5c2f139bf14ae53f0b8a2a6a86f4e17"
@@ -5677,6 +5738,11 @@ defaults@^1.0.3:
   dependencies:
     clone "^1.0.2"
 
+defer-to-connect@^1.0.1:
+  version "1.1.1"
+  resolved "https://registry.npmjs.org/defer-to-connect/-/defer-to-connect-1.1.1.tgz#88ae694b93f67b81815a2c8c769aef6574ac8f2f"
+  integrity sha512-J7thop4u3mRTkYRQ+Vpfwy2G5Ehoy82I14+14W4YMDLKdWloI9gSzRbV30s/NckQGVJtPkWNcW4oMAUigTdqiQ==
+
 deferred-leveldown@~1.2.1:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/deferred-leveldown/-/deferred-leveldown-1.2.2.tgz#3acd2e0b75d1669924bc0a4b642851131173e1eb"
@@ -6272,6 +6338,15 @@ es5-ext@^0.10.46:
     es6-symbol "~3.1.1"
     next-tick "^1.0.0"
 
+es5-ext@^0.10.50:
+  version "0.10.53"
+  resolved "https://registry.npmjs.org/es5-ext/-/es5-ext-0.10.53.tgz#93c5a3acfdbef275220ad72644ad02ee18368de1"
+  integrity sha512-Xs2Stw6NiNHWypzRTY1MtaG/uJlwCk8kH81920ma8mvN8Xq1gsfhZvpkImLQArw8AHnv8MT2I45J3c0R8slE+Q==
+  dependencies:
+    es6-iterator "~2.0.3"
+    es6-symbol "~3.1.3"
+    next-tick "~1.0.0"
+
 es6-iterator@^2.0.1, es6-iterator@^2.0.3, es6-iterator@~2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.3.tgz#a7de889141a05a94b0854403b2d0a0fbfa98f3b7"
@@ -6301,6 +6376,14 @@ es6-symbol@^3.1.1, es6-symbol@~3.1.1:
     d "1"
     es5-ext "~0.10.14"
 
+es6-symbol@~3.1.3:
+  version "3.1.3"
+  resolved "https://registry.npmjs.org/es6-symbol/-/es6-symbol-3.1.3.tgz#bad5d3c1bcdac28269f4cb331e431c78ac705d18"
+  integrity sha512-NJ6Yn3FuDinBaBRWl/q5X/s4koRHBrgKAu+yGI6JCBeiu3qrcbJhwT2GeR/EXVfylRk8dpQVJoLEFhK+Mu31NA==
+  dependencies:
+    d "^1.0.1"
+    ext "^1.1.2"
+
 es6-weak-map@^2.0.1:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/es6-weak-map/-/es6-weak-map-2.0.3.tgz#b6da1f16cc2cc0d9be43e6bdbfc5e7dfcdf31d53"
@@ -6480,6 +6563,14 @@ eth-block-tracker@^3.0.0:
     pify "^2.3.0"
     tape "^4.6.3"
 
+eth-ens-namehash@2.0.8:
+  version "2.0.8"
+  resolved "https://registry.npmjs.org/eth-ens-namehash/-/eth-ens-namehash-2.0.8.tgz#229ac46eca86d52e0c991e7cb2aef83ff0f68bcf"
+  integrity sha1-IprEbsqG1S4MmR58sq74P/D2i88=
+  dependencies:
+    idna-uts46-hx "^2.3.1"
+    js-sha3 "^0.5.7"
+
 eth-json-rpc-infura@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/eth-json-rpc-infura/-/eth-json-rpc-infura-3.1.0.tgz#01b955a04d1a827b14c6cdc8a78b3a025d06a183"
@@ -6554,6 +6645,18 @@ eth-sig-util@2.1.2:
     tweetnacl "^1.0.0"
     tweetnacl-util "^0.15.0"
 
+eth-sig-util@2.3.0:
+  version "2.3.0"
+  resolved "https://registry.npmjs.org/eth-sig-util/-/eth-sig-util-2.3.0.tgz#c54a6ac8e8796f7e25f59cf436982a930e645231"
+  integrity sha512-ugD1AvaggvKaZDgnS19W5qOfepjGc7qHrt7TrAaL54gJw9SHvgIXJ3r2xOMW30RWJZNP+1GlTOy5oye7yXA4xA==
+  dependencies:
+    buffer "^5.2.1"
+    elliptic "^6.4.0"
+    ethereumjs-abi "0.6.5"
+    ethereumjs-util "^5.1.1"
+    tweetnacl "^1.0.0"
+    tweetnacl-util "^0.15.0"
+
 eth-sig-util@^1.4.2:
   version "1.4.2"
   resolved "https://registry.yarnpkg.com/eth-sig-util/-/eth-sig-util-1.4.2.tgz#8d958202c7edbaae839707fba6f09ff327606210"
@@ -6617,6 +6720,14 @@ ethereumjs-abi@0.6.5:
     bn.js "^4.10.0"
     ethereumjs-util "^4.3.0"
 
+ethereumjs-abi@0.6.7:
+  version "0.6.7"
+  resolved "https://registry.npmjs.org/ethereumjs-abi/-/ethereumjs-abi-0.6.7.tgz#d1d1c5cdb8d910a7d97645ba9e93be5d153bba2e"
+  integrity sha512-EMLOA8ICO5yAaXDhjVEfYjsJIXYutY8ufTE93eEKwsVtp2usQreKwsDTJ9zvam3omYqNuffr8IONIqb2uUslGQ==
+  dependencies:
+    bn.js "^4.11.8"
+    ethereumjs-util "^6.0.0"
+
 "ethereumjs-abi@git+https://github.com/ethereumjs/ethereumjs-abi.git":
   version "0.6.5"
   resolved "git+https://github.com/ethereumjs/ethereumjs-abi.git#00ba8463a7f7a67fcad737ff9c2ebd95643427f7"
@@ -6632,14 +6743,7 @@ ethereumjs-account@2.0.5:
     rlp "^2.0.0"
     safe-buffer "^5.1.1"
 
-ethereumjs-account@^2.0.3:
-  version "2.0.4"
-  resolved "https://registry.yarnpkg.com/ethereumjs-account/-/ethereumjs-account-2.0.4.tgz#f8c30231bcb707f4514d8a052c1f9da103624d47"
-  dependencies:
-    ethereumjs-util "^4.0.1"
-    rlp "^2.0.0"
-
-ethereumjs-account@^3.0.0:
+ethereumjs-account@3.0.0, ethereumjs-account@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/ethereumjs-account/-/ethereumjs-account-3.0.0.tgz#728f060c8e0c6e87f1e987f751d3da25422570a9"
   dependencies:
@@ -6647,6 +6751,13 @@ ethereumjs-account@^3.0.0:
     rlp "^2.2.1"
     safe-buffer "^5.1.1"
 
+ethereumjs-account@^2.0.3:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/ethereumjs-account/-/ethereumjs-account-2.0.4.tgz#f8c30231bcb707f4514d8a052c1f9da103624d47"
+  dependencies:
+    ethereumjs-util "^4.0.1"
+    rlp "^2.0.0"
+
 ethereumjs-block@2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/ethereumjs-block/-/ethereumjs-block-2.1.0.tgz#71d1b19e18061f14cf6371bf34ba31a359931360"
@@ -6657,6 +6768,16 @@ ethereumjs-block@2.1.0:
     ethereumjs-util "^5.0.0"
     merkle-patricia-tree "^2.1.2"
 
+ethereumjs-block@2.2.0, ethereumjs-block@~2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/ethereumjs-block/-/ethereumjs-block-2.2.0.tgz#8c6c3ab4a5eff0a16d9785fbeedbe643f4dbcbef"
+  dependencies:
+    async "^2.0.1"
+    ethereumjs-common "^1.1.0"
+    ethereumjs-tx "^1.2.2"
+    ethereumjs-util "^5.0.0"
+    merkle-patricia-tree "^2.1.2"
+
 ethereumjs-block@^1.2.2, ethereumjs-block@^1.4.1, ethereumjs-block@^1.6.0, ethereumjs-block@~1.7.0:
   version "1.7.1"
   resolved "https://registry.yarnpkg.com/ethereumjs-block/-/ethereumjs-block-1.7.1.tgz#78b88e6cc56de29a6b4884ee75379b6860333c3f"
@@ -6667,16 +6788,6 @@ ethereumjs-block@^1.2.2, ethereumjs-block@^1.4.1, ethereumjs-block@^1.6.0, ether
     ethereumjs-util "^5.0.0"
     merkle-patricia-tree "^2.1.2"
 
-ethereumjs-block@~2.2.0:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/ethereumjs-block/-/ethereumjs-block-2.2.0.tgz#8c6c3ab4a5eff0a16d9785fbeedbe643f4dbcbef"
-  dependencies:
-    async "^2.0.1"
-    ethereumjs-common "^1.1.0"
-    ethereumjs-tx "^1.2.2"
-    ethereumjs-util "^5.0.0"
-    merkle-patricia-tree "^2.1.2"
-
 ethereumjs-blockchain@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/ethereumjs-blockchain/-/ethereumjs-blockchain-4.0.1.tgz#db113dfed4fcc5197d223391f10adbc5a1b3536b"
@@ -6712,6 +6823,11 @@ ethereumjs-common@^1.3.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/ethereumjs-common/-/ethereumjs-common-1.3.1.tgz#a5cffac41beb7ad393283b2e5aa71fadf8a9cc73"
 
+ethereumjs-common@^1.3.1, ethereumjs-common@^1.3.2:
+  version "1.5.0"
+  resolved "https://registry.npmjs.org/ethereumjs-common/-/ethereumjs-common-1.5.0.tgz#d3e82fc7c47c0cef95047f431a99485abc9bb1cd"
+  integrity sha512-SZOjgK1356hIY7MRj3/ma5qtfr/4B5BL+G4rP/XSMYr2z1H5el4RX5GReYCKmQmYI/nSBmRnwrZ17IfHuG0viQ==
+
 ethereumjs-tx@1.3.7:
   version "1.3.7"
   resolved "https://registry.yarnpkg.com/ethereumjs-tx/-/ethereumjs-tx-1.3.7.tgz#88323a2d875b10549b8347e09f4862b546f3d89a"
@@ -6733,6 +6849,14 @@ ethereumjs-tx@^2.1.0:
     ethereumjs-common "^1.3.0"
     ethereumjs-util "^6.0.0"
 
+ethereumjs-tx@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.npmjs.org/ethereumjs-tx/-/ethereumjs-tx-2.1.1.tgz#7d204e2b319156c9bc6cec67e9529424a26e8ccc"
+  integrity sha512-QtVriNqowCFA19X9BCRPMgdVNJ0/gMBS91TQb1DfrhsbR748g4STwxZptFAwfqehMyrF8rDwB23w87PQwru0wA==
+  dependencies:
+    ethereumjs-common "^1.3.1"
+    ethereumjs-util "^6.0.0"
+
 ethereumjs-util@5.2.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz#3e0c0d1741471acf1036052d048623dee54ad642"
@@ -6745,6 +6869,19 @@ ethereumjs-util@5.2.0:
     safe-buffer "^5.1.1"
     secp256k1 "^3.0.1"
 
+ethereumjs-util@6.1.0, ethereumjs-util@^6.0.0, ethereumjs-util@^6.1.0, ethereumjs-util@~6.1.0:
+  version "6.1.0"
+  resolved "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.1.0.tgz#e9c51e5549e8ebd757a339cc00f5380507e799c8"
+  integrity sha512-URESKMFbDeJxnAxPppnk2fN6Y3BIatn9fwn76Lm8bQlt+s52TpG8dN9M66MLPuRAiAOIqL3dfwqWJf0sd0fL0Q==
+  dependencies:
+    bn.js "^4.11.0"
+    create-hash "^1.1.2"
+    ethjs-util "0.1.6"
+    keccak "^1.0.2"
+    rlp "^2.0.0"
+    safe-buffer "^5.1.1"
+    secp256k1 "^3.0.1"
+
 ethereumjs-util@^4.0.1, ethereumjs-util@^4.3.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-4.5.0.tgz#3e9428b317eebda3d7260d854fddda954b1f1bc6"
@@ -6767,18 +6904,6 @@ ethereumjs-util@^5.0.0, ethereumjs-util@^5.0.1, ethereumjs-util@^5.1.1, ethereum
     safe-buffer "^5.1.1"
     secp256k1 "^3.0.1"
 
-ethereumjs-util@^6.0.0, ethereumjs-util@^6.1.0, ethereumjs-util@~6.1.0:
-  version "6.1.0"
-  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-6.1.0.tgz#e9c51e5549e8ebd757a339cc00f5380507e799c8"
-  dependencies:
-    bn.js "^4.11.0"
-    create-hash "^1.1.2"
-    ethjs-util "0.1.6"
-    keccak "^1.0.2"
-    rlp "^2.0.0"
-    safe-buffer "^5.1.1"
-    secp256k1 "^3.0.1"
-
 ethereumjs-util@^6.2.0:
   version "6.2.0"
   resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-6.2.0.tgz#23ec79b2488a7d041242f01e25f24e5ad0357960"
@@ -6808,6 +6933,27 @@ ethereumjs-vm@2.6.0:
     rustbn.js "~0.2.0"
     safe-buffer "^5.1.1"
 
+ethereumjs-vm@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.npmjs.org/ethereumjs-vm/-/ethereumjs-vm-4.1.0.tgz#359ed3592636390a5b2909a28d955c908830daa5"
+  integrity sha512-qvgmKkyF+eZ6NvtqTV74z9oRB7UxUStA0gShEbXftovpukVIYVzhvCl9KvUi64Rpo8jufze6Z0zHhiQpZN0Izw==
+  dependencies:
+    async "^2.1.2"
+    async-eventemitter "^0.2.2"
+    core-js-pure "^3.0.1"
+    ethereumjs-account "^3.0.0"
+    ethereumjs-block "~2.2.0"
+    ethereumjs-blockchain "^4.0.1"
+    ethereumjs-common "^1.3.2"
+    ethereumjs-tx "^2.1.1"
+    ethereumjs-util "^6.1.0"
+    fake-merkle-patricia-tree "^1.0.1"
+    functional-red-black-tree "^1.0.1"
+    merkle-patricia-tree "^2.3.2"
+    rustbn.js "~0.2.0"
+    safe-buffer "^5.1.1"
+    util.promisify "^1.0.0"
+
 ethereumjs-vm@^2.0.2, ethereumjs-vm@^2.1.0, ethereumjs-vm@^2.3.4:
   version "2.3.4"
   resolved "https://registry.yarnpkg.com/ethereumjs-vm/-/ethereumjs-vm-2.3.4.tgz#f635d7cb047571a1840a6e9a74d29de4488f8ad6"
@@ -6858,6 +7004,22 @@ ethereumjs-wallet@0.6.3:
     utf8 "^3.0.0"
     uuid "^3.3.2"
 
+ethers@4.0.0-beta.3:
+  version "4.0.0-beta.3"
+  resolved "https://registry.npmjs.org/ethers/-/ethers-4.0.0-beta.3.tgz#15bef14e57e94ecbeb7f9b39dd0a4bd435bc9066"
+  integrity sha512-YYPogooSknTwvHg3+Mv71gM/3Wcrx+ZpCzarBj3mqs9njjRkrOo2/eufzhHloOCo3JSoNI4TQJJ6yU5ABm3Uog==
+  dependencies:
+    "@types/node" "^10.3.2"
+    aes-js "3.0.0"
+    bn.js "^4.4.0"
+    elliptic "6.3.3"
+    hash.js "1.1.3"
+    js-sha3 "0.5.7"
+    scrypt-js "2.0.3"
+    setimmediate "1.0.4"
+    uuid "2.0.1"
+    xmlhttprequest "1.8.0"
+
 ethers@~4.0.4:
   version "4.0.4"
   resolved "https://registry.yarnpkg.com/ethers/-/ethers-4.0.4.tgz#d3f85e8b27f4b59537e06526439b0fb15b44dc65"
@@ -6936,7 +7098,7 @@ eventemitter3@3.1.0:
   version "3.1.0"
   resolved "https://registry.npmjs.org/eventemitter3/-/eventemitter3-3.1.0.tgz#090b4d6cdbd645ed10bf750d4b5407942d7ba163"
 
-eventemitter3@^3.1.0:
+eventemitter3@3.1.2, eventemitter3@^3.1.0:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-3.1.2.tgz#2d3d48f9c346698fce83a85d7d664e98535df6e7"
 
@@ -7161,6 +7323,13 @@ express@^4.16.3:
     utils-merge "1.0.1"
     vary "~1.1.2"
 
+ext@^1.1.2:
+  version "1.4.0"
+  resolved "https://registry.npmjs.org/ext/-/ext-1.4.0.tgz#89ae7a07158f79d35517882904324077e4379244"
+  integrity sha512-Key5NIsUxdqKg3vIsdw9dSuXpPCQ297y6wBjL30edxwPgt2E44WcWBZey/ZvUc6sERLTxKdyCu4gZFmUbk1Q7A==
+  dependencies:
+    type "^2.0.0"
+
 extend-shallow@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-2.0.1.tgz#51af7d614ad9a9f610ea1bafbb989d6b1c56890f"
@@ -7701,6 +7870,15 @@ fs-extra@^2.0.0, fs-extra@^2.1.2:
     graceful-fs "^4.1.2"
     jsonfile "^2.1.0"
 
+fs-extra@^4.0.2:
+  version "4.0.3"
+  resolved "https://registry.npmjs.org/fs-extra/-/fs-extra-4.0.3.tgz#0d852122e5bc5beb453fb028e9c0c9bf36340c94"
+  integrity sha512-q6rbdDd1o2mAnQreO7YADIxf/Whx4AHBiRf6d+/cVT8h44ss+lHgxf1FemcqDnQt9X3ct4McHr+JMGlYSsK7Cg==
+  dependencies:
+    graceful-fs "^4.1.2"
+    jsonfile "^4.0.0"
+    universalify "^0.1.0"
+
 fs-extra@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-7.0.0.tgz#8cc3f47ce07ef7b3593a11b9fb245f7e34c041d6"
@@ -7795,13 +7973,47 @@ functional-red-black-tree@^1.0.1, functional-red-black-tree@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
 
-ganache-cli@6.4.1:
-  version "6.4.1"
-  resolved "https://registry.npmjs.org/ganache-cli/-/ganache-cli-6.4.1.tgz#77c1682883a544dcad160b0e8155e282aefb4f1f"
+ganache-cli@6.8.0-istanbul.0:
+  version "6.8.0-istanbul.0"
+  resolved "https://registry.npmjs.org/ganache-cli/-/ganache-cli-6.8.0-istanbul.0.tgz#ec19bc08ff30d250ae13c6f57c16069ecf583fa6"
+  integrity sha512-ELGCztyrqhSTQyPFAx5++iAFPODKCv8i3qoaPj7oq1DtyJQwZp6XjQb9Yu39kdW/VYR4rA0HuHW1oxRtTkmr9Q==
   dependencies:
-    bn.js "4.11.8"
-    source-map-support "0.5.9"
-    yargs "11.1.0"
+    ethereumjs-util "6.1.0"
+    source-map-support "0.5.12"
+    yargs "13.2.4"
+
+ganache-core@2.9.0-istanbul.0:
+  version "2.9.0-istanbul.0"
+  resolved "https://registry.npmjs.org/ganache-core/-/ganache-core-2.9.0-istanbul.0.tgz#bc336c770775a2b9fb06f5cae827088ecc194283"
+  integrity sha512-wqNWyxrfZe4QPxzaR/n4hGxIfa1iZAkymPg17wET0iWZ9uurMywGgpG4ZvxjVU9q7WCjIobOSzE1m9OT0dIYcQ==
+  dependencies:
+    abstract-leveldown "3.0.0"
+    async "2.6.2"
+    bip39 "2.5.0"
+    cachedown "1.0.0"
+    clone "2.1.2"
+    debug "3.2.6"
+    encoding-down "5.0.4"
+    eth-sig-util "2.3.0"
+    ethereumjs-abi "0.6.7"
+    ethereumjs-account "3.0.0"
+    ethereumjs-block "2.2.0"
+    ethereumjs-tx "1.3.7"
+    ethereumjs-util "6.1.0"
+    ethereumjs-vm "4.1.0"
+    heap "0.2.6"
+    level-sublevel "6.6.4"
+    levelup "3.1.1"
+    lodash "4.17.14"
+    merkle-patricia-tree "2.3.2"
+    seedrandom "3.0.1"
+    source-map-support "0.5.12"
+    tmp "0.1.0"
+    web3-provider-engine "14.2.1"
+    websocket "1.0.29"
+  optionalDependencies:
+    ethereumjs-wallet "0.6.3"
+    web3 "1.2.1"
 
 ganache-core@^2.6.0:
   version "2.6.0"
@@ -7923,6 +8135,13 @@ get-stream@^4.0.0, get-stream@^4.1.0:
   dependencies:
     pump "^3.0.0"
 
+get-stream@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.npmjs.org/get-stream/-/get-stream-5.1.0.tgz#01203cdc92597f9b909067c3e656cc1f4d3c4dc9"
+  integrity sha512-EXr1FOzrzTfGeL0gQdeFEvOMm2mzMOglyiOXSTpPC+iAjAKftbr3jpCMWynogwYnM+eSj9sHGc6wjIcDvYiygw==
+  dependencies:
+    pump "^3.0.0"
+
 get-value@^2.0.3, get-value@^2.0.6:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/get-value/-/get-value-2.0.6.tgz#dc15ca1c672387ca76bd37ac0a395ba2042a2c28"
@@ -8238,6 +8457,23 @@ got@7.1.0, got@^7.1.0:
     url-parse-lax "^1.0.0"
     url-to-options "^1.0.1"
 
+got@9.6.0:
+  version "9.6.0"
+  resolved "https://registry.npmjs.org/got/-/got-9.6.0.tgz#edf45e7d67f99545705de1f7bbeeeb121765ed85"
+  integrity sha512-R7eWptXuGYxwijs0eV+v3o6+XH1IqVK8dJOEecQfTmkncw9AV4dcw/Dhxi8MdlqPthxxpZyizMzyg8RTmEsG+Q==
+  dependencies:
+    "@sindresorhus/is" "^0.14.0"
+    "@szmarczak/http-timer" "^1.1.2"
+    cacheable-request "^6.0.0"
+    decompress-response "^3.3.0"
+    duplexer3 "^0.1.4"
+    get-stream "^4.1.0"
+    lowercase-keys "^1.0.1"
+    mimic-response "^1.0.1"
+    p-cancelable "^1.0.0"
+    to-readable-stream "^1.0.0"
+    url-parse-lax "^3.0.0"
+
 got@^6.7.1:
   version "6.7.1"
   resolved "https://registry.yarnpkg.com/got/-/got-6.7.1.tgz#240cd05785a9a18e561dc1b44b41c763ef1e8db0"
@@ -8596,6 +8832,11 @@ http-cache-semantics@^3.8.1:
   version "3.8.1"
   resolved "https://registry.yarnpkg.com/http-cache-semantics/-/http-cache-semantics-3.8.1.tgz#39b0e16add9b605bf0a9ef3d9daaf4843b4cacd2"
 
+http-cache-semantics@^4.0.0:
+  version "4.0.3"
+  resolved "https://registry.npmjs.org/http-cache-semantics/-/http-cache-semantics-4.0.3.tgz#495704773277eeef6e43f9ab2c2c7d259dda25c5"
+  integrity sha512-TcIMG3qeVLgDr1TEd2XvHaTnMPwYQUQMIBLy+5pLSDKYFc7UIqj39w8EGzZkaxoLv/l2K8HaI0t5AVA+YYgUew==
+
 http-deceiver@^1.2.7:
   version "1.2.7"
   resolved "https://registry.yarnpkg.com/http-deceiver/-/http-deceiver-1.2.7.tgz#fa7168944ab9a519d337cb0bec7284dc3e723d87"
@@ -8729,6 +8970,13 @@ iconv-lite@^0.4.17, iconv-lite@~0.4.13:
   dependencies:
     safer-buffer "^2.1.0"
 
+idna-uts46-hx@^2.3.1:
+  version "2.3.1"
+  resolved "https://registry.npmjs.org/idna-uts46-hx/-/idna-uts46-hx-2.3.1.tgz#a1dc5c4df37eee522bf66d969cc980e00e8711f9"
+  integrity sha512-PWoF9Keq6laYdIRwwCdhTPl60xRqAloYNMQLiyUnG42VjT53oW07BXIRM+NK7eQjzXjAk2gUvX9caRxlnF9TAA==
+  dependencies:
+    punycode "2.1.0"
+
 ieee754@1.1.8:
   version "1.1.8"
   resolved "https://registry.npmjs.org/ieee754/-/ieee754-1.1.8.tgz#be33d40ac10ef1926701f6f08a2d86fbfd1ad3e4"
@@ -10208,7 +10456,7 @@ js-sha3@0.5.5:
   version "0.5.5"
   resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.5.5.tgz#baf0c0e8c54ad5903447df96ade7a4a1bca79a4a"
 
-js-sha3@0.5.7:
+js-sha3@0.5.7, js-sha3@^0.5.7:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.5.7.tgz#0d4ffd8002d5333aabaf4a23eed2f6374c9f28e7"
 
@@ -10296,6 +10544,11 @@ jsesc@~0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
 
+json-buffer@3.0.0:
+  version "3.0.0"
+  resolved "https://registry.npmjs.org/json-buffer/-/json-buffer-3.0.0.tgz#5b1f397afc75d677bde8bcfc0e47e1f9a3d9a898"
+  integrity sha1-Wx85evx11ne96Lz8Dkfh+aPZqJg=
+
 json-parse-better-errors@^1.0.0, json-parse-better-errors@^1.0.1, json-parse-better-errors@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/json-parse-better-errors/-/json-parse-better-errors-1.0.2.tgz#bb867cfb3450e69107c131d1c514bab3dc8bcaa9"
@@ -10450,6 +10703,13 @@ keccakjs@^0.2.0, keccakjs@^0.2.1:
     browserify-sha3 "^0.0.1"
     sha3 "^1.1.0"
 
+keyv@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.npmjs.org/keyv/-/keyv-3.1.0.tgz#ecc228486f69991e49e9476485a5be1e8fc5c4d9"
+  integrity sha512-9ykJ/46SN/9KPM/sichzQ7OvXyGDYKGTaDlKMGCAlg2UK8KRy4jb0d8sFc+0Tt0YYnThq8X2RZgCg74RPxgcVA==
+  dependencies:
+    json-buffer "3.0.0"
+
 killable@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/killable/-/killable-1.0.0.tgz#da8b84bd47de5395878f95d64d02f2449fe05e6b"
@@ -10982,6 +11242,11 @@ lodash@4.17.11:
   version "4.17.11"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
 
+lodash@4.17.14:
+  version "4.17.14"
+  resolved "https://registry.npmjs.org/lodash/-/lodash-4.17.14.tgz#9ce487ae66c96254fe20b599f21b6816028078ba"
+  integrity sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==
+
 lodash@^4.0.0, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.15.0, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.13, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.5.1:
   version "4.17.15"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
@@ -11055,10 +11320,15 @@ lower-case@^1.1.0, lower-case@^1.1.1, lower-case@^1.1.2:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/lower-case/-/lower-case-1.1.4.tgz#9a2cabd1b9e8e0ae993a4bf7d5875c39c42e8eac"
 
-lowercase-keys@^1.0.0:
+lowercase-keys@^1.0.0, lowercase-keys@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/lowercase-keys/-/lowercase-keys-1.0.1.tgz#6f9e30b47084d971a7c820ff15a6c5167b74c26f"
 
+lowercase-keys@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.npmjs.org/lowercase-keys/-/lowercase-keys-2.0.0.tgz#2603e78b7b4b0006cbca2fbcc8a3202558ac9479"
+  integrity sha512-tqNXrS78oMOE73NMxK4EMLQsQowWf8jKooH9g7xPavRT706R6bkQJ6DY2Te7QukaZsulxa30wQ7bk0pm4XiHmA==
+
 lru-cache@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-3.2.0.tgz#71789b3b7f5399bec8565dda38aa30d2a097efee"
@@ -11368,7 +11638,7 @@ merge@^1.2.0:
   version "1.2.0"
   resolved "https://registry.npmjs.org/merge/-/merge-1.2.0.tgz#7531e39d4949c281a66b8c5a6e0265e8b05894da"
 
-merkle-patricia-tree@2.3.1, merkle-patricia-tree@^2.1.2, merkle-patricia-tree@^2.3.2:
+merkle-patricia-tree@2.3.1, merkle-patricia-tree@2.3.2, merkle-patricia-tree@^2.1.2, merkle-patricia-tree@^2.3.2:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/merkle-patricia-tree/-/merkle-patricia-tree-2.3.2.tgz#982ca1b5a0fde00eed2f6aeed1f9152860b8208a"
   dependencies:
@@ -11478,6 +11748,11 @@ mimic-response@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/mimic-response/-/mimic-response-1.0.0.tgz#df3d3652a73fded6b9b0b24146e6fd052353458e"
 
+mimic-response@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.npmjs.org/mimic-response/-/mimic-response-1.0.1.tgz#4923538878eef42063cb8a3e3b0798781487ab1b"
+  integrity sha512-j5EctnkH7amfV/q5Hgmoal1g2QHFJRraOtmx0JpIqkxhBhI/lJSl1nMpQ45hVarwNETOoWEimndZ4QK0RHxuxQ==
+
 min-document@^2.19.0:
   version "2.19.0"
   resolved "https://registry.yarnpkg.com/min-document/-/min-document-2.19.0.tgz#7bd282e3f5842ed295bb748cdd9f1ffa2c824685"
@@ -11531,6 +11806,14 @@ minipass@^2.3.5:
     safe-buffer "^5.1.2"
     yallist "^3.0.0"
 
+minipass@^2.8.6:
+  version "2.9.0"
+  resolved "https://registry.npmjs.org/minipass/-/minipass-2.9.0.tgz#e713762e7d3e32fed803115cf93e04bca9fcc9a6"
+  integrity sha512-wxfUjg9WebH+CUDX/CdbRlh5SmfZiy/hpkxaRI16Y9W56Pa75sWgd/rvFilSgrauD9NyFymP/+JFV3KwzIsJeg==
+  dependencies:
+    safe-buffer "^5.1.2"
+    yallist "^3.0.0"
+
 minizlib@^1.1.0:
   version "1.1.0"
   resolved "https://registry.npmjs.org/minizlib/-/minizlib-1.1.0.tgz#11e13658ce46bc3a70a267aac58359d1e0c29ceb"
@@ -11818,7 +12101,7 @@ neo-async@^2.6.0:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.1.tgz#ac27ada66167fa8849a6addd837f6b189ad2081c"
 
-next-tick@1, next-tick@^1.0.0:
+next-tick@1, next-tick@^1.0.0, next-tick@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/next-tick/-/next-tick-1.0.0.tgz#ca86d1fe8828169b0120208e3dc8424b9db8342c"
 
@@ -12090,6 +12373,11 @@ normalize-url@^3.3.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-3.3.0.tgz#b2e1c4dc4f7c6d57743df733a4f5978d18650559"
 
+normalize-url@^4.1.0:
+  version "4.5.0"
+  resolved "https://registry.npmjs.org/normalize-url/-/normalize-url-4.5.0.tgz#453354087e6ca96957bd8f5baf753f5982142129"
+  integrity sha512-2s47yzUxdexf1OhyRi4Em83iQk0aPvwTddtFz4hnSSw9dCEsLEGf6SwIO8ss/19S9iBb5sJaOuTvTGDeZI00BQ==
+
 now-and-later@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/now-and-later/-/now-and-later-2.0.0.tgz#bc61cbb456d79cb32207ce47ca05136ff2e7d6ee"
@@ -12431,6 +12719,13 @@ oboe@2.1.3:
   dependencies:
     http-https "^1.0.0"
 
+oboe@2.1.4:
+  version "2.1.4"
+  resolved "https://registry.npmjs.org/oboe/-/oboe-2.1.4.tgz#20c88cdb0c15371bb04119257d4fdd34b0aa49f6"
+  integrity sha1-IMiM2wwVNxuwQRklfU/dNLCqSfY=
+  dependencies:
+    http-https "^1.0.0"
+
 obuf@^1.0.0, obuf@^1.1.1:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/obuf/-/obuf-1.1.2.tgz#09bea3343d41859ebd446292d11c9d4db619084e"
@@ -12622,6 +12917,11 @@ p-cancelable@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/p-cancelable/-/p-cancelable-0.3.0.tgz#b9e123800bcebb7ac13a479be195b507b98d30fa"
 
+p-cancelable@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.npmjs.org/p-cancelable/-/p-cancelable-1.1.0.tgz#d078d15a3af409220c886f1d9a0ca2e441ab26cc"
+  integrity sha512-s73XxOZ4zpt1edZYZzvhqFa6uvQc1vwUa0K0BdtIZgQMAJj9IbebH+JkgKZc9h+B05PKHLOTl4ajG1BmNrVZlw==
+
 p-defer@^1.0.0:
   version "1.0.0"
   resolved "https://registry.npmjs.org/p-defer/-/p-defer-1.0.0.tgz#9f6eb182f6c9aa8cd743004a7d4f96b196b0fb0c"
@@ -13149,6 +13449,11 @@ prepend-http@^1.0.1:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
 
+prepend-http@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.npmjs.org/prepend-http/-/prepend-http-2.0.0.tgz#e92434bfa5ea8c19f41cdfd401d741a3c819d897"
+  integrity sha1-6SQ0v6XqjBn0HN/UAddBo8gZ2Jc=
+
 preserve@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
@@ -13509,14 +13814,14 @@ punycode@1.3.2:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.3.2.tgz#9653a036fb7c1ee42342f2325cceefea3926c48d"
 
+punycode@2.1.0, punycode@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.0.tgz#5f863edc89b96db09074bad7947bf09056ca4e7d"
+
 punycode@^1.2.4, punycode@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
 
-punycode@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.0.tgz#5f863edc89b96db09074bad7947bf09056ca4e7d"
-
 q@^1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"
@@ -14246,6 +14551,13 @@ resolve@~1.5.0:
   dependencies:
     path-parse "^1.0.5"
 
+responselike@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.npmjs.org/responselike/-/responselike-1.0.2.tgz#918720ef3b631c5642be068f15ade5a46f4ba1e7"
+  integrity sha1-kYcg7ztjHFZCvgaPFa3lpG9Loec=
+  dependencies:
+    lowercase-keys "^1.0.0"
+
 restore-cursor@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-1.0.1.tgz#34661f46886327fed2991479152252df92daa541"
@@ -14524,6 +14836,11 @@ schema-utils@^2.2.0:
     ajv "^6.10.2"
     ajv-keywords "^3.4.1"
 
+scrypt-js@2.0.3:
+  version "2.0.3"
+  resolved "https://registry.npmjs.org/scrypt-js/-/scrypt-js-2.0.3.tgz#bb0040be03043da9a012a2cea9fc9f852cfc87d4"
+  integrity sha1-uwBAvgMEPamgEqLOqfyfhSz8h9Q=
+
 scrypt-js@2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/scrypt-js/-/scrypt-js-2.0.4.tgz#32f8c5149f0797672e551c07e230f834b6af5f16"
@@ -14549,6 +14866,11 @@ scrypt@^6.0.2:
   dependencies:
     nan "^2.0.8"
 
+scryptsy@2.1.0:
+  version "2.1.0"
+  resolved "https://registry.npmjs.org/scryptsy/-/scryptsy-2.1.0.tgz#8d1e8d0c025b58fdd25b6fa9a0dc905ee8faa790"
+  integrity sha512-1CdSqHQowJBnMAFyPEBRfqag/YP9OF394FV+4YREIJX4ljD7OxvQRDayyoyyCk+senRjSkP6VnUNQmVQqB6g7w==
+
 scryptsy@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/scryptsy/-/scryptsy-1.2.1.tgz#a3225fa4b2524f802700761e2855bdf3b2d92163"
@@ -14572,6 +14894,11 @@ seedrandom@2.4.4:
   version "2.4.4"
   resolved "https://registry.yarnpkg.com/seedrandom/-/seedrandom-2.4.4.tgz#b25ea98632c73e45f58b77cfaa931678df01f9ba"
 
+seedrandom@3.0.1:
+  version "3.0.1"
+  resolved "https://registry.npmjs.org/seedrandom/-/seedrandom-3.0.1.tgz#eb3dde015bcf55df05a233514e5df44ef9dce083"
+  integrity sha512-1/02Y/rUeU1CJBAGLebiC5Lbo5FnB22gQbIFFYTLkwvp1xdABZJH1sn4ZT1MzXmPpzv+Rf/Lu2NcsLJiK4rcDg==
+
 seedrandom@^3.0.5:
   version "3.0.5"
   resolved "https://registry.yarnpkg.com/seedrandom/-/seedrandom-3.0.5.tgz#54edc85c95222525b0c7a6f6b3543d8e0b3aa0a7"
@@ -14635,6 +14962,11 @@ semver-sort@0.0.4:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
 
+semver@6.2.0:
+  version "6.2.0"
+  resolved "https://registry.npmjs.org/semver/-/semver-6.2.0.tgz#4d813d9590aaf8a9192693d6c85b9344de5901db"
+  integrity sha512-jdFC1VdUGT/2Scgbimf7FSx9iJLXoqfglSF+gJeuNWVpiE37OIbc1jywR/GJyFdz3mnkz2/id0L0J/cr0izR5A==
+
 semver@^5.5.1:
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.6.0.tgz#7e74256fbaa49c75aa7c7a205cc22799cac80004"
@@ -15057,6 +15389,14 @@ source-map-resolve@^0.5.2:
     source-map-url "^0.4.0"
     urix "^0.1.0"
 
+source-map-support@0.5.12:
+  version "0.5.12"
+  resolved "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.12.tgz#b4f3b10d51857a5af0138d3ce8003b201613d599"
+  integrity sha512-4h2Pbvyy15EE02G+JOZpUCmqWJuqrs+sEkzewTm++BPi7Hvn/HwcqLAcNxYAyI0x13CpPPn+kMjl+hplXMHITQ==
+  dependencies:
+    buffer-from "^1.0.0"
+    source-map "^0.6.0"
+
 source-map-support@0.5.6, source-map-support@^0.5.6:
   version "0.5.6"
   resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.6.tgz#4435cee46b1aab62b8e8610ce60f788091c51c13"
@@ -15358,6 +15698,15 @@ string-width@^3.0.0:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^5.0.0"
 
+string-width@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz#22767be21b62af1081574306f69ac51b62203961"
+  integrity sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==
+  dependencies:
+    emoji-regex "^7.0.1"
+    is-fullwidth-code-point "^2.0.0"
+    strip-ansi "^5.1.0"
+
 string.prototype.padend@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/string.prototype.padend/-/string.prototype.padend-3.0.0.tgz#f3aaef7c1719f170c5eab1c32bf780d96e21f2f0"
@@ -15412,6 +15761,13 @@ strip-ansi@^5.0.0:
   dependencies:
     ansi-regex "^4.0.0"
 
+strip-ansi@^5.1.0, strip-ansi@^5.2.0:
+  version "5.2.0"
+  resolved "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz#8c9a536feb6afc962bdfa5b104a5091c1ad9c0ae"
+  integrity sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==
+  dependencies:
+    ansi-regex "^4.1.0"
+
 strip-bom@3.0.0, strip-bom@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-3.0.0.tgz#2334c18e9c759f7bdd56fdef7e9ae3d588e68ed3"
@@ -15602,6 +15958,24 @@ swarm-js@0.1.37:
     tar.gz "^1.0.5"
     xhr-request-promise "^0.1.2"
 
+swarm-js@0.1.39:
+  version "0.1.39"
+  resolved "https://registry.npmjs.org/swarm-js/-/swarm-js-0.1.39.tgz#79becb07f291d4b2a178c50fee7aa6e10342c0e8"
+  integrity sha512-QLMqL2rzF6n5s50BptyD6Oi0R1aWlJC5Y17SRIVXRj6OR1DRIPM7nepvrxxkjA1zNzFz6mUOMjfeqeDaWB7OOg==
+  dependencies:
+    bluebird "^3.5.0"
+    buffer "^5.0.5"
+    decompress "^4.0.0"
+    eth-lib "^0.1.26"
+    fs-extra "^4.0.2"
+    got "^7.1.0"
+    mime-types "^2.1.16"
+    mkdirp-promise "^5.0.1"
+    mock-fs "^4.1.0"
+    setimmediate "^1.0.5"
+    tar "^4.0.2"
+    xhr-request-promise "^0.1.2"
+
 symbol-observable@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.0.1.tgz#8340fc4702c3122df5d22288f88283f513d3fdd4"
@@ -15708,6 +16082,19 @@ tar@^4, tar@^4.4.3:
     safe-buffer "^5.1.2"
     yallist "^3.0.2"
 
+tar@^4.0.2:
+  version "4.4.13"
+  resolved "https://registry.npmjs.org/tar/-/tar-4.4.13.tgz#43b364bc52888d555298637b10d60790254ab525"
+  integrity sha512-w2VwSrBoHa5BsSyH+KxEqeQBAllHhccyMFVHtGtdMpF4W7IRWfZjFiQceJPChOeTsSDVUpER2T8FA93pr0L+QA==
+  dependencies:
+    chownr "^1.1.1"
+    fs-minipass "^1.2.5"
+    minipass "^2.8.6"
+    minizlib "^1.2.1"
+    mkdirp "^0.5.0"
+    safe-buffer "^5.1.2"
+    yallist "^3.0.3"
+
 tar@^4.4.10, tar@^4.4.8:
   version "4.4.10"
   resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.10.tgz#946b2810b9a5e0b26140cf78bea6b0b0d689eba1"
@@ -15907,6 +16294,13 @@ tmp@0.0.33, tmp@^0.0.33:
   dependencies:
     os-tmpdir "~1.0.2"
 
+tmp@0.1.0:
+  version "0.1.0"
+  resolved "https://registry.npmjs.org/tmp/-/tmp-0.1.0.tgz#ee434a4e22543082e294ba6201dcc6eafefa2877"
+  integrity sha512-J7Z2K08jbGcdA1kkQpJSqLF6T0tdQqpR2pnSUXsIchbPdTI9v3e85cLW0d6WDhwuAleOV71j2xWs8qMPfK7nKw==
+  dependencies:
+    rimraf "^2.6.3"
+
 tmpl@1.0.x:
   version "1.0.4"
   resolved "https://registry.npmjs.org/tmpl/-/tmpl-1.0.4.tgz#23640dd7b42d00433911140820e5cf440e521dd1"
@@ -15940,6 +16334,11 @@ to-object-path@^0.3.0:
   dependencies:
     kind-of "^3.0.2"
 
+to-readable-stream@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.npmjs.org/to-readable-stream/-/to-readable-stream-1.0.0.tgz#ce0aa0c2f3df6adf852efb404a783e77c0475771"
+  integrity sha512-Iq25XBt6zD5npPhlLVXGFN3/gyR2/qODcKNNyTMd4vbm39HUaOiAM4PMq0eMVC/Tkxz+Zjdsc55g9yyz+Yq00Q==
+
 to-regex-range@^2.1.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/to-regex-range/-/to-regex-range-2.1.1.tgz#7c80c17b9dfebe599e27367e0d4dd5590141db38"
@@ -16196,6 +16595,16 @@ type-is@~1.6.17:
     media-typer "0.3.0"
     mime-types "~2.1.24"
 
+type@^1.0.1:
+  version "1.2.0"
+  resolved "https://registry.npmjs.org/type/-/type-1.2.0.tgz#848dd7698dafa3e54a6c479e759c4bc3f18847a0"
+  integrity sha512-+5nt5AAniqsCnu2cEQQdpzCAh33kVx8n0VoFidKpB1dVVLAN/F+bgVOqOJqOnEnrhp222clB5p3vUlD+1QAnfg==
+
+type@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.npmjs.org/type/-/type-2.0.0.tgz#5f16ff6ef2eb44f260494dae271033b29c09a9c3"
+  integrity sha512-KBt58xCHry4Cejnc2ISQAF7QY+ORngsWfxezO68+12hKV6lQY8P/psIkcbjeHWn7MqcgciWJyCCevFMJdIXpow==
+
 typedarray-to-buffer@^3.1.2, typedarray-to-buffer@^3.1.5:
   version "3.1.5"
   resolved "https://registry.yarnpkg.com/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz#a97ee7a9ff42691b9f783ff1bc5112fe3fca9080"
@@ -16371,7 +16780,7 @@ underscore@1.8.3:
   version "1.8.3"
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.8.3.tgz#4f3fb53b106e6097fcf9cb4109f2a5e9bdfa5022"
 
-underscore@>=1.8.3, underscore@^1.9.1:
+underscore@1.9.1, underscore@>=1.8.3, underscore@^1.9.1:
   version "1.9.1"
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.9.1.tgz#06dce34a0e68a7babc29b365b8e74b8925203961"
 
@@ -16517,6 +16926,13 @@ url-parse-lax@^1.0.0:
   dependencies:
     prepend-http "^1.0.1"
 
+url-parse-lax@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.npmjs.org/url-parse-lax/-/url-parse-lax-3.0.0.tgz#16b5cafc07dbe3676c1b1999177823d6503acb0c"
+  integrity sha1-FrXK/Afb42dsGxmZF3gj1lA6yww=
+  dependencies:
+    prepend-http "^2.0.0"
+
 url-parse@1.0.x:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.0.5.tgz#0854860422afdcfefeb6c965c662d4800169927b"
@@ -16574,7 +16990,7 @@ utf8@2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/utf8/-/utf8-2.1.1.tgz#2e01db02f7d8d0944f77104f1609eb0c304cf768"
 
-utf8@^3.0.0:
+utf8@3.0.0, utf8@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/utf8/-/utf8-3.0.0.tgz#f052eed1364d696e769ef058b183df88c87f69d1"
 
@@ -16637,14 +17053,14 @@ uuid@3.2.1, uuid@^3.0.0, uuid@^3.0.1, uuid@^3.1.0:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.2.1.tgz#12c528bb9d58d0b9265d9a2f6f0fe8be17ff1f14"
 
+uuid@3.3.2, uuid@^3.3.2:
+  version "3.3.2"
+  resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.2.tgz#1b4af4955eb3077c501c23872fc6513811587131"
+
 uuid@^2.0.1:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-2.0.3.tgz#67e2e863797215530dff318e5bf9dcebfd47b21a"
 
-uuid@^3.3.2:
-  version "3.3.2"
-  resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.2.tgz#1b4af4955eb3077c501c23872fc6513811587131"
-
 v8-compile-cache@^2.0.2:
   version "2.0.2"
   resolved "https://registry.npmjs.org/v8-compile-cache/-/v8-compile-cache-2.0.2.tgz#a428b28bb26790734c4fc8bc9fa106fccebf6a6c"
@@ -16794,6 +17210,15 @@ web3-bzz@1.0.0-beta.35:
     swarm-js "0.1.37"
     underscore "1.8.3"
 
+web3-bzz@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-bzz/-/web3-bzz-1.2.1.tgz#c3bd1e8f0c02a13cd6d4e3c3e9e1713f144f6f0d"
+  integrity sha512-LdOO44TuYbGIPfL4ilkuS89GQovxUpmLz6C1UC7VYVVRILeZS740FVB3j9V4P4FHUk1RenaDfKhcntqgVCHtjw==
+  dependencies:
+    got "9.6.0"
+    swarm-js "0.1.39"
+    underscore "1.9.1"
+
 web3-core-helpers@1.0.0-beta.34:
   version "1.0.0-beta.34"
   resolved "https://registry.yarnpkg.com/web3-core-helpers/-/web3-core-helpers-1.0.0-beta.34.tgz#b168da00d3e19e156bc15ae203203dd4dfee2d03"
@@ -16810,6 +17235,15 @@ web3-core-helpers@1.0.0-beta.35:
     web3-eth-iban "1.0.0-beta.35"
     web3-utils "1.0.0-beta.35"
 
+web3-core-helpers@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-core-helpers/-/web3-core-helpers-1.2.1.tgz#f5f32d71c60a4a3bd14786118e633ce7ca6d5d0d"
+  integrity sha512-Gx3sTEajD5r96bJgfuW377PZVFmXIH4TdqDhgGwd2lZQCcMi+DA4TgxJNJGxn0R3aUVzyyE76j4LBrh412mXrw==
+  dependencies:
+    underscore "1.9.1"
+    web3-eth-iban "1.2.1"
+    web3-utils "1.2.1"
+
 web3-core-helpers@2.0.0-alpha:
   version "2.0.0-alpha"
   resolved "https://registry.yarnpkg.com/web3-core-helpers/-/web3-core-helpers-2.0.0-alpha.tgz#76d720e50a6d5fbf91761a350060cc155fa9e3d3"
@@ -16830,6 +17264,17 @@ web3-core-method@1.0.0-beta.35:
     web3-core-subscriptions "1.0.0-beta.35"
     web3-utils "1.0.0-beta.35"
 
+web3-core-method@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-core-method/-/web3-core-method-1.2.1.tgz#9df1bafa2cd8be9d9937e01c6a47fc768d15d90a"
+  integrity sha512-Ghg2WS23qi6Xj8Od3VCzaImLHseEA7/usvnOItluiIc5cKs00WYWsNy2YRStzU9a2+z8lwQywPYp0nTzR/QXdQ==
+  dependencies:
+    underscore "1.9.1"
+    web3-core-helpers "1.2.1"
+    web3-core-promievent "1.2.1"
+    web3-core-subscriptions "1.2.1"
+    web3-utils "1.2.1"
+
 web3-core-method@2.0.0-alpha:
   version "2.0.0-alpha"
   resolved "https://registry.yarnpkg.com/web3-core-method/-/web3-core-method-2.0.0-alpha.tgz#453063885ab3cdd2bf63e5e586cdb3ee7d9cdfcb"
@@ -16850,6 +17295,14 @@ web3-core-promievent@1.0.0-beta.35:
     any-promise "1.3.0"
     eventemitter3 "1.1.1"
 
+web3-core-promievent@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-core-promievent/-/web3-core-promievent-1.2.1.tgz#003e8a3eb82fb27b6164a6d5b9cad04acf733838"
+  integrity sha512-IVUqgpIKoeOYblwpex4Hye6npM0aMR+kU49VP06secPeN0rHMyhGF0ZGveWBrGvf8WDPI7jhqPBFIC6Jf3Q3zw==
+  dependencies:
+    any-promise "1.3.0"
+    eventemitter3 "3.1.2"
+
 web3-core-requestmanager@1.0.0-beta.35:
   version "1.0.0-beta.35"
   resolved "https://registry.yarnpkg.com/web3-core-requestmanager/-/web3-core-requestmanager-1.0.0-beta.35.tgz#2b77cbf6303720ad68899b39fa7f584dc03dbc8f"
@@ -16860,6 +17313,17 @@ web3-core-requestmanager@1.0.0-beta.35:
     web3-providers-ipc "1.0.0-beta.35"
     web3-providers-ws "1.0.0-beta.35"
 
+web3-core-requestmanager@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-core-requestmanager/-/web3-core-requestmanager-1.2.1.tgz#fa2e2206c3d738db38db7c8fe9c107006f5c6e3d"
+  integrity sha512-xfknTC69RfYmLKC+83Jz73IC3/sS2ZLhGtX33D4Q5nQ8yc39ElyAolxr9sJQS8kihOcM6u4J+8gyGMqsLcpIBg==
+  dependencies:
+    underscore "1.9.1"
+    web3-core-helpers "1.2.1"
+    web3-providers-http "1.2.1"
+    web3-providers-ipc "1.2.1"
+    web3-providers-ws "1.2.1"
+
 web3-core-subscriptions@1.0.0-beta.35:
   version "1.0.0-beta.35"
   resolved "https://registry.yarnpkg.com/web3-core-subscriptions/-/web3-core-subscriptions-1.0.0-beta.35.tgz#c1b76a2ad3c6e80f5d40b8ba560f01e0f4628758"
@@ -16868,6 +17332,15 @@ web3-core-subscriptions@1.0.0-beta.35:
     underscore "1.8.3"
     web3-core-helpers "1.0.0-beta.35"
 
+web3-core-subscriptions@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-core-subscriptions/-/web3-core-subscriptions-1.2.1.tgz#8c2368a839d4eec1c01a4b5650bbeb82d0e4a099"
+  integrity sha512-nmOwe3NsB8V8UFsY1r+sW6KjdOS68h8nuh7NzlWxBQT/19QSUGiERRTaZXWu5BYvo1EoZRMxCKyCQpSSXLc08g==
+  dependencies:
+    eventemitter3 "3.1.2"
+    underscore "1.9.1"
+    web3-core-helpers "1.2.1"
+
 web3-core-subscriptions@2.0.0-alpha:
   version "2.0.0-alpha"
   resolved "https://registry.yarnpkg.com/web3-core-subscriptions/-/web3-core-subscriptions-2.0.0-alpha.tgz#f8cb496af6e56b76bc0718213b7d777eeeacc741"
@@ -16885,6 +17358,16 @@ web3-core@1.0.0-beta.35:
     web3-core-requestmanager "1.0.0-beta.35"
     web3-utils "1.0.0-beta.35"
 
+web3-core@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-core/-/web3-core-1.2.1.tgz#7278b58fb6495065e73a77efbbce781a7fddf1a9"
+  integrity sha512-5ODwIqgl8oIg/0+Ai4jsLxkKFWJYE0uLuE1yUKHNVCL4zL6n3rFjRMpKPokd6id6nJCNgeA64KdWQ4XfpnjdMg==
+  dependencies:
+    web3-core-helpers "1.2.1"
+    web3-core-method "1.2.1"
+    web3-core-requestmanager "1.2.1"
+    web3-utils "1.2.1"
+
 web3-core@2.0.0-alpha:
   version "2.0.0-alpha"
   resolved "https://registry.yarnpkg.com/web3-core/-/web3-core-2.0.0-alpha.tgz#79722bd65e5d9e28b47e2f43638c8994ed3f2b8e"
@@ -16906,6 +17389,15 @@ web3-eth-abi@1.0.0-beta.35:
     web3-core-helpers "1.0.0-beta.35"
     web3-utils "1.0.0-beta.35"
 
+web3-eth-abi@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-eth-abi/-/web3-eth-abi-1.2.1.tgz#9b915b1c9ebf82f70cca631147035d5419064689"
+  integrity sha512-jI/KhU2a/DQPZXHjo2GW0myEljzfiKOn+h1qxK1+Y9OQfTcBMxrQJyH5AP89O6l6NZ1QvNdq99ThAxBFoy5L+g==
+  dependencies:
+    ethers "4.0.0-beta.3"
+    underscore "1.9.1"
+    web3-utils "1.2.1"
+
 web3-eth-abi@^1.0.0-beta.24:
   version "1.0.0-beta.34"
   resolved "https://registry.yarnpkg.com/web3-eth-abi/-/web3-eth-abi-1.0.0-beta.34.tgz#034533e3aa2f7e59ff31793eaea685c0ed5af67a"
@@ -16930,6 +17422,23 @@ web3-eth-accounts@1.0.0-beta.35:
     web3-core-method "1.0.0-beta.35"
     web3-utils "1.0.0-beta.35"
 
+web3-eth-accounts@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-eth-accounts/-/web3-eth-accounts-1.2.1.tgz#2741a8ef337a7219d57959ac8bd118b9d68d63cf"
+  integrity sha512-26I4qq42STQ8IeKUyur3MdQ1NzrzCqPsmzqpux0j6X/XBD7EjZ+Cs0lhGNkSKH5dI3V8CJasnQ5T1mNKeWB7nQ==
+  dependencies:
+    any-promise "1.3.0"
+    crypto-browserify "3.12.0"
+    eth-lib "0.2.7"
+    scryptsy "2.1.0"
+    semver "6.2.0"
+    underscore "1.9.1"
+    uuid "3.3.2"
+    web3-core "1.2.1"
+    web3-core-helpers "1.2.1"
+    web3-core-method "1.2.1"
+    web3-utils "1.2.1"
+
 web3-eth-contract@1.0.0-beta.35:
   version "1.0.0-beta.35"
   resolved "https://registry.yarnpkg.com/web3-eth-contract/-/web3-eth-contract-1.0.0-beta.35.tgz#5276242d8a3358d9f1ce92b71575c74f9015935c"
@@ -16943,6 +17452,34 @@ web3-eth-contract@1.0.0-beta.35:
     web3-eth-abi "1.0.0-beta.35"
     web3-utils "1.0.0-beta.35"
 
+web3-eth-contract@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-eth-contract/-/web3-eth-contract-1.2.1.tgz#3542424f3d341386fd9ff65e78060b85ac0ea8c4"
+  integrity sha512-kYFESbQ3boC9bl2rYVghj7O8UKMiuKaiMkxvRH5cEDHil8V7MGEGZNH0slSdoyeftZVlaWSMqkRP/chfnKND0g==
+  dependencies:
+    underscore "1.9.1"
+    web3-core "1.2.1"
+    web3-core-helpers "1.2.1"
+    web3-core-method "1.2.1"
+    web3-core-promievent "1.2.1"
+    web3-core-subscriptions "1.2.1"
+    web3-eth-abi "1.2.1"
+    web3-utils "1.2.1"
+
+web3-eth-ens@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-eth-ens/-/web3-eth-ens-1.2.1.tgz#a0e52eee68c42a8b9865ceb04e5fb022c2d971d5"
+  integrity sha512-lhP1kFhqZr2nnbu3CGIFFrAnNxk2veXpOXBY48Tub37RtobDyHijHgrj+xTh+mFiPokyrapVjpFsbGa+Xzye4Q==
+  dependencies:
+    eth-ens-namehash "2.0.8"
+    underscore "1.9.1"
+    web3-core "1.2.1"
+    web3-core-helpers "1.2.1"
+    web3-core-promievent "1.2.1"
+    web3-eth-abi "1.2.1"
+    web3-eth-contract "1.2.1"
+    web3-utils "1.2.1"
+
 web3-eth-iban@1.0.0-beta.34:
   version "1.0.0-beta.34"
   resolved "https://registry.yarnpkg.com/web3-eth-iban/-/web3-eth-iban-1.0.0-beta.34.tgz#9af458605867ccf74ea979aaf326b38ba6a5ba0c"
@@ -16957,6 +17494,14 @@ web3-eth-iban@1.0.0-beta.35:
     bn.js "4.11.6"
     web3-utils "1.0.0-beta.35"
 
+web3-eth-iban@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-eth-iban/-/web3-eth-iban-1.2.1.tgz#2c3801718946bea24e9296993a975c80b5acf880"
+  integrity sha512-9gkr4QPl1jCU+wkgmZ8EwODVO3ovVj6d6JKMos52ggdT2YCmlfvFVF6wlGLwi0VvNa/p+0BjJzaqxnnG/JewjQ==
+  dependencies:
+    bn.js "4.11.8"
+    web3-utils "1.2.1"
+
 web3-eth-iban@2.0.0-alpha:
   version "2.0.0-alpha"
   resolved "https://registry.yarnpkg.com/web3-eth-iban/-/web3-eth-iban-2.0.0-alpha.tgz#87c164d964b50c000554b1c58e46dac8e2b04787"
@@ -16975,6 +17520,17 @@ web3-eth-personal@1.0.0-beta.35:
     web3-net "1.0.0-beta.35"
     web3-utils "1.0.0-beta.35"
 
+web3-eth-personal@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-eth-personal/-/web3-eth-personal-1.2.1.tgz#244e9911b7b482dc17c02f23a061a627c6e47faf"
+  integrity sha512-RNDVSiaSoY4aIp8+Hc7z+X72H7lMb3fmAChuSBADoEc7DsJrY/d0R5qQDK9g9t2BO8oxgLrLNyBP/9ub2Hc6Bg==
+  dependencies:
+    web3-core "1.2.1"
+    web3-core-helpers "1.2.1"
+    web3-core-method "1.2.1"
+    web3-net "1.2.1"
+    web3-utils "1.2.1"
+
 web3-eth@1.0.0-beta.35:
   version "1.0.0-beta.35"
   resolved "https://registry.yarnpkg.com/web3-eth/-/web3-eth-1.0.0-beta.35.tgz#c52c804afb95e6624b6f5e72a9af90fbf5005b68"
@@ -16992,6 +17548,25 @@ web3-eth@1.0.0-beta.35:
     web3-net "1.0.0-beta.35"
     web3-utils "1.0.0-beta.35"
 
+web3-eth@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-eth/-/web3-eth-1.2.1.tgz#b9989e2557c73a9e8ffdc107c6dafbe72c79c1b0"
+  integrity sha512-/2xly4Yry5FW1i+uygPjhfvgUP/MS/Dk+PDqmzp5M88tS86A+j8BzKc23GrlA8sgGs0645cpZK/999LpEF5UdA==
+  dependencies:
+    underscore "1.9.1"
+    web3-core "1.2.1"
+    web3-core-helpers "1.2.1"
+    web3-core-method "1.2.1"
+    web3-core-subscriptions "1.2.1"
+    web3-eth-abi "1.2.1"
+    web3-eth-accounts "1.2.1"
+    web3-eth-contract "1.2.1"
+    web3-eth-ens "1.2.1"
+    web3-eth-iban "1.2.1"
+    web3-eth-personal "1.2.1"
+    web3-net "1.2.1"
+    web3-utils "1.2.1"
+
 web3-net@1.0.0-beta.35:
   version "1.0.0-beta.35"
   resolved "https://registry.yarnpkg.com/web3-net/-/web3-net-1.0.0-beta.35.tgz#5c6688e0dea71fcd910ee9dc5437b94b7f6b3354"
@@ -17000,6 +17575,15 @@ web3-net@1.0.0-beta.35:
     web3-core-method "1.0.0-beta.35"
     web3-utils "1.0.0-beta.35"
 
+web3-net@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-net/-/web3-net-1.2.1.tgz#edd249503315dd5ab4fa00220f6509d95bb7ab10"
+  integrity sha512-Yt1Bs7WgnLESPe0rri/ZoPWzSy55ovioaP35w1KZydrNtQ5Yq4WcrAdhBzcOW7vAkIwrsLQsvA+hrOCy7mNauw==
+  dependencies:
+    web3-core "1.2.1"
+    web3-core-method "1.2.1"
+    web3-utils "1.2.1"
+
 web3-provider-engine@14.0.6:
   version "14.0.6"
   resolved "https://registry.yarnpkg.com/web3-provider-engine/-/web3-provider-engine-14.0.6.tgz#cbdd66fe20c0136a3a495cbe40d18b6c4160d5f0"
@@ -17051,6 +17635,32 @@ web3-provider-engine@14.1.0:
     xhr "^2.2.0"
     xtend "^4.0.1"
 
+web3-provider-engine@14.2.1:
+  version "14.2.1"
+  resolved "https://registry.npmjs.org/web3-provider-engine/-/web3-provider-engine-14.2.1.tgz#ef351578797bf170e08d529cb5b02f8751329b95"
+  integrity sha512-iSv31h2qXkr9vrL6UZDm4leZMc32SjWJFGOp/D92JXfcEboCqraZyuExDkpxKw8ziTufXieNM7LSXNHzszYdJw==
+  dependencies:
+    async "^2.5.0"
+    backoff "^2.5.0"
+    clone "^2.0.0"
+    cross-fetch "^2.1.0"
+    eth-block-tracker "^3.0.0"
+    eth-json-rpc-infura "^3.1.0"
+    eth-sig-util "^1.4.2"
+    ethereumjs-block "^1.2.2"
+    ethereumjs-tx "^1.2.0"
+    ethereumjs-util "^5.1.5"
+    ethereumjs-vm "^2.3.4"
+    json-rpc-error "^2.0.0"
+    json-stable-stringify "^1.0.1"
+    promise-to-callback "^1.0.0"
+    readable-stream "^2.2.9"
+    request "^2.85.0"
+    semaphore "^1.0.3"
+    ws "^5.1.1"
+    xhr "^2.2.0"
+    xtend "^4.0.1"
+
 web3-provider-engine@^13.3.2:
   version "13.8.0"
   resolved "https://registry.yarnpkg.com/web3-provider-engine/-/web3-provider-engine-13.8.0.tgz#4c7c1ad2af5f1fe10343b8a65495879a2f9c00df"
@@ -17082,6 +17692,14 @@ web3-providers-http@1.0.0-beta.35:
     web3-core-helpers "1.0.0-beta.35"
     xhr2-cookies "1.1.0"
 
+web3-providers-http@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-providers-http/-/web3-providers-http-1.2.1.tgz#c93ea003a42e7b894556f7e19dd3540f947f5013"
+  integrity sha512-BDtVUVolT9b3CAzeGVA/np1hhn7RPUZ6YYGB/sYky+GjeO311Yoq8SRDUSezU92x8yImSC2B+SMReGhd1zL+bQ==
+  dependencies:
+    web3-core-helpers "1.2.1"
+    xhr2-cookies "1.1.0"
+
 web3-providers-ipc@1.0.0-beta.35:
   version "1.0.0-beta.35"
   resolved "https://registry.yarnpkg.com/web3-providers-ipc/-/web3-providers-ipc-1.0.0-beta.35.tgz#031afeb10fade2ebb0ef2fb82f5e58c04be842d9"
@@ -17090,6 +17708,15 @@ web3-providers-ipc@1.0.0-beta.35:
     underscore "1.8.3"
     web3-core-helpers "1.0.0-beta.35"
 
+web3-providers-ipc@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-providers-ipc/-/web3-providers-ipc-1.2.1.tgz#017bfc687a8fc5398df2241eb98f135e3edd672c"
+  integrity sha512-oPEuOCwxVx8L4CPD0TUdnlOUZwGBSRKScCz/Ws2YHdr9Ium+whm+0NLmOZjkjQp5wovQbyBzNa6zJz1noFRvFA==
+  dependencies:
+    oboe "2.1.4"
+    underscore "1.9.1"
+    web3-core-helpers "1.2.1"
+
 web3-providers-ws@1.0.0-beta.35:
   version "1.0.0-beta.35"
   resolved "https://registry.yarnpkg.com/web3-providers-ws/-/web3-providers-ws-1.0.0-beta.35.tgz#5d38603fd450243a26aae0ff7f680644e77fa240"
@@ -17098,6 +17725,15 @@ web3-providers-ws@1.0.0-beta.35:
     web3-core-helpers "1.0.0-beta.35"
     websocket "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible"
 
+web3-providers-ws@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-providers-ws/-/web3-providers-ws-1.2.1.tgz#2d941eaf3d5a8caa3214eff8dc16d96252b842cb"
+  integrity sha512-oqsQXzu+ejJACVHy864WwIyw+oB21nw/pI65/sD95Zi98+/HQzFfNcIFneF1NC4bVF3VNX4YHTNq2I2o97LAiA==
+  dependencies:
+    underscore "1.9.1"
+    web3-core-helpers "1.2.1"
+    websocket "github:web3-js/WebSocket-Node#polyfill/globalThis"
+
 web3-providers@2.0.0-alpha:
   version "2.0.0-alpha"
   resolved "https://registry.yarnpkg.com/web3-providers/-/web3-providers-2.0.0-alpha.tgz#6bce7f6e6d08fa874bd78214c6c54251cd7a81da"
@@ -17123,6 +17759,16 @@ web3-shh@1.0.0-beta.35:
     web3-core-subscriptions "1.0.0-beta.35"
     web3-net "1.0.0-beta.35"
 
+web3-shh@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-shh/-/web3-shh-1.2.1.tgz#4460e3c1e07faf73ddec24ccd00da46f89152b0c"
+  integrity sha512-/3Cl04nza5kuFn25bV3FJWa0s3Vafr5BlT933h26xovQ6HIIz61LmvNQlvX1AhFL+SNJOTcQmK1SM59vcyC8bA==
+  dependencies:
+    web3-core "1.2.1"
+    web3-core-method "1.2.1"
+    web3-core-subscriptions "1.2.1"
+    web3-net "1.2.1"
+
 web3-typescript-typings@^0.10.2:
   version "0.10.2"
   resolved "https://registry.yarnpkg.com/web3-typescript-typings/-/web3-typescript-typings-0.10.2.tgz#a9903815d2a8a0dbd73fd5db374070de0bd30497"
@@ -17153,6 +17799,19 @@ web3-utils@1.0.0-beta.35:
     underscore "1.8.3"
     utf8 "2.1.1"
 
+web3-utils@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3-utils/-/web3-utils-1.2.1.tgz#21466e38291551de0ab34558de21512ac4274534"
+  integrity sha512-Mrcn3l58L+yCKz3zBryM6JZpNruWuT0OCbag8w+reeNROSGVlXzUQkU+gtAwc9JCZ7tKUyg67+2YUGqUjVcyBA==
+  dependencies:
+    bn.js "4.11.8"
+    eth-lib "0.2.7"
+    ethjs-unit "0.1.6"
+    number-to-bn "1.7.0"
+    randomhex "0.1.5"
+    underscore "1.9.1"
+    utf8 "3.0.0"
+
 web3-utils@2.0.0-alpha:
   version "2.0.0-alpha"
   resolved "https://registry.yarnpkg.com/web3-utils/-/web3-utils-2.0.0-alpha.tgz#2e8b91f4887380672a270f8045826d72b58c12a4"
@@ -17180,6 +17839,19 @@ web3@1.0.0-beta.35:
     web3-shh "1.0.0-beta.35"
     web3-utils "1.0.0-beta.35"
 
+web3@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.npmjs.org/web3/-/web3-1.2.1.tgz#5d8158bcca47838ab8c2b784a2dee4c3ceb4179b"
+  integrity sha512-nNMzeCK0agb5i/oTWNdQ1aGtwYfXzHottFP2Dz0oGIzavPMGSKyVlr8ibVb1yK5sJBjrWVnTdGaOC2zKDFuFRw==
+  dependencies:
+    web3-bzz "1.2.1"
+    web3-core "1.2.1"
+    web3-eth "1.2.1"
+    web3-eth-personal "1.2.1"
+    web3-net "1.2.1"
+    web3-shh "1.2.1"
+    web3-utils "1.2.1"
+
 webidl-conversions@^4.0.2:
   version "4.0.2"
   resolved "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-4.0.2.tgz#a855980b1f0b6b359ba1d5d9fb39ae941faa63ad"
@@ -17327,7 +17999,7 @@ websocket@1.0.26:
     typedarray-to-buffer "^3.1.2"
     yaeti "^0.0.6"
 
-websocket@^1.0.25, websocket@^1.0.28, websocket@^1.0.29:
+websocket@1.0.29, websocket@^1.0.25, websocket@^1.0.28, websocket@^1.0.29:
   version "1.0.29"
   resolved "https://registry.yarnpkg.com/websocket/-/websocket-1.0.29.tgz#3f83e49d3279657c58b02a22d90749c806101b98"
   dependencies:
@@ -17355,6 +18027,16 @@ websocket@^1.0.26:
     typedarray-to-buffer "^3.1.2"
     yaeti "^0.0.6"
 
+"websocket@github:web3-js/WebSocket-Node#polyfill/globalThis":
+  version "1.0.29"
+  resolved "https://codeload.github.com/web3-js/WebSocket-Node/tar.gz/905deb4812572b344f5801f8c9ce8bb02799d82e"
+  dependencies:
+    debug "^2.2.0"
+    es5-ext "^0.10.50"
+    nan "^2.14.0"
+    typedarray-to-buffer "^3.1.5"
+    yaeti "^0.0.6"
+
 whatwg-encoding@^1.0.1, whatwg-encoding@^1.0.3:
   version "1.0.5"
   resolved "https://registry.npmjs.org/whatwg-encoding/-/whatwg-encoding-1.0.5.tgz#5abacf777c32166a51d085d6b4f3e7d27113ddb0"
@@ -17493,6 +18175,15 @@ wrap-ansi@^2.0.0:
     string-width "^1.0.1"
     strip-ansi "^3.0.1"
 
+wrap-ansi@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-5.1.0.tgz#1fd1f67235d5b6d0fee781056001bfb694c03b09"
+  integrity sha512-QC1/iN/2/RPVJ5jYK8BGttj5z83LmSKmvbvrXPNCLZSEb32KKVDJDl/MOt2N01qU2H/FkzEa9PKto1BqDjtd7Q==
+  dependencies:
+    ansi-styles "^3.2.0"
+    string-width "^3.0.0"
+    strip-ansi "^5.0.0"
+
 wrappy@1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
@@ -17731,9 +18422,10 @@ yargs-parser@^11.1.1:
     camelcase "^5.0.0"
     decamelize "^1.2.0"
 
-yargs-parser@^13.0.0:
+yargs-parser@^13.0.0, yargs-parser@^13.1.0:
   version "13.1.1"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-13.1.1.tgz#d26058532aa06d365fe091f6a1fc06b2f7e5eca0"
+  resolved "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.1.tgz#d26058532aa06d365fe091f6a1fc06b2f7e5eca0"
+  integrity sha512-oVAVsHz6uFrg3XQheFII8ESO2ssAf9luWuAd6Wexsu4F3OtIW0o8IribPXYrD4WC24LWtPrJlGy87y5udK+dxQ==
   dependencies:
     camelcase "^5.0.0"
     decamelize "^1.2.0"
@@ -17844,6 +18536,23 @@ yargs@13.2.2:
     y18n "^4.0.0"
     yargs-parser "^13.0.0"
 
+yargs@13.2.4:
+  version "13.2.4"
+  resolved "https://registry.npmjs.org/yargs/-/yargs-13.2.4.tgz#0b562b794016eb9651b98bd37acf364aa5d6dc83"
+  integrity sha512-HG/DWAJa1PAnHT9JAhNa8AbAv3FPaiLzioSjCcmuXXhP8MlpHO5vwls4g4j6n30Z74GVQj8Xa62dWVx1QCGklg==
+  dependencies:
+    cliui "^5.0.0"
+    find-up "^3.0.0"
+    get-caller-file "^2.0.1"
+    os-locale "^3.1.0"
+    require-directory "^2.1.1"
+    require-main-filename "^2.0.0"
+    set-blocking "^2.0.0"
+    string-width "^3.0.0"
+    which-module "^2.0.0"
+    y18n "^4.0.0"
+    yargs-parser "^13.1.0"
+
 yargs@^10.0.3:
   version "10.1.2"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-10.1.2.tgz#454d074c2b16a51a43e2fb7807e4f9de69ccb5c5"