diff --git a/packages/contract-addresses/CHANGELOG.json b/packages/contract-addresses/CHANGELOG.json
index 5b7f3ab9e0..d669dc3ed5 100644
--- a/packages/contract-addresses/CHANGELOG.json
+++ b/packages/contract-addresses/CHANGELOG.json
@@ -1,4 +1,12 @@
 [
+    {
+        "version": "3.0.1",
+        "changes": [
+            {
+                "note": "Update remaining Mainnet V2.1 contract addresses"
+            }
+        ]
+    },
     {
         "version": "3.0.0",
         "changes": [
diff --git a/packages/contract-addresses/src/index.ts b/packages/contract-addresses/src/index.ts
index 86fa1c3b44..07223ce3a4 100644
--- a/packages/contract-addresses/src/index.ts
+++ b/packages/contract-addresses/src/index.ts
@@ -29,53 +29,53 @@ const networkToAddresses: { [networkId: number]: ContractAddresses } = {
         exchange: '0x080bf510fcbf18b91105470639e9561022937712',
         erc20Proxy: '0x95e6f48254609a6ee006f7d493c8e5fb97094cef',
         erc721Proxy: '0xefc70a1b18c432bdc64b596838b4d138f6bc6cad',
-        forwarder: '0xdc4587cb17d2a1829512e2cfec621f8066290e6a',
+        forwarder: '0x76481caa104b5f6bccb540dae4cefaf1c398ebea',
         orderValidator: '0xa09329c6003c9a5402102e226417738ee22cf1f2',
         zrxToken: '0xe41d2489571d322189246dafa5ebde1f4699f498',
         etherToken: '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2',
         assetProxyOwner: '0xdffe798c7172dd6deb32baee68af322e8f495ce0',
-        dutchAuction: NULL_ADDRESS,
-        coordinatorRegistry: NULL_ADDRESS,
-        coordinator: NULL_ADDRESS,
+        dutchAuction: '0xa3856622276a64fee0f17f67329fac24368d4aae',
+        coordinatorRegistry: '0x45797531b873fd5e519477a070a955764c1a5b07',
+        coordinator: '0xa14857e8930acd9a882d33ec20559beb5479c8a6',
     },
     3: {
         erc20Proxy: '0xb1408f4c245a23c31b98d2c626777d4c0d766caa',
         erc721Proxy: '0xe654aac058bfbf9f83fcaee7793311dd82f6ddb4',
         zrxToken: '0xff67881f8d12f372d91baae9752eb3631ff0ed00',
         etherToken: '0xc778417e063141139fce010982780140aa0cd5ab',
-        exchange: '0x4530c0483a1633c7a1c97d2c53721caff2caaaaf',
+        exchange: '0xbff9493f92a3df4b0429b6d00743b3cfb4c85831',
         assetProxyOwner: '0xf5fa5b5fed2727a0e44ac67f6772e97977aa358b',
-        forwarder: '0x2240dab907db71e64d3e0dba4800c83b5c502d4e',
+        forwarder: '0x1ebdc9758e85c1c6a85af06cc96cf89000a31913',
         orderValidator: '0x90431a90516ab49af23a0530e04e8c7836e7122f',
-        dutchAuction: '0x2df6b59309f35ada230ec7d61d7d97355017a1df',
+        dutchAuction: '0xe5f862f7811af180990025b6259b02feb0a0b8dc',
         coordinatorRegistry: '0x403cc23e88c17c4652fb904784d1af640a6722d9',
-        coordinator: '0x25aae5b981ce6683cc5aeea1855d927e0b59066f',
+        coordinator: '0x2ba02e03ee0029311e0f43715307870a3e701b53',
     },
     4: {
-        exchange: '0xbce0b5f6eb618c565c3e5f5cd69652bbc279f44e',
+        exchange: '0xbff9493f92a3df4b0429b6d00743b3cfb4c85831',
         erc20Proxy: '0x2f5ae4f6106e89b4147651688a92256885c5f410',
         erc721Proxy: '0x7656d773e11ff7383a14dcf09a9c50990481cd10',
         zrxToken: '0x8080c7e4b81ecf23aa6f877cfbfd9b0c228c6ffa',
         etherToken: '0xc778417e063141139fce010982780140aa0cd5ab',
         assetProxyOwner: '0xe1703da878afcebff5b7624a826902af475b9c03',
-        forwarder: '0x2d40589abbdee84961f3a7656b9af7adb0ee5ab4',
+        forwarder: '0x1ebdc9758e85c1c6a85af06cc96cf89000a31913',
         orderValidator: '0x0c5173a51e26b29d6126c686756fb9fbef71f762',
-        dutchAuction: '0xdd7bd6437e67c422879364740ab5855fe3dc41f7',
+        dutchAuction: '0xe5f862f7811af180990025b6259b02feb0a0b8dc',
         coordinatorRegistry: '0x1084b6a398e47907bae43fec3ff4b677db6e4fee',
-        coordinator: '0x25aae5b981ce6683cc5aeea1855d927e0b59066f',
+        coordinator: '0x2ba02e03ee0029311e0f43715307870a3e701b53',
     },
     42: {
         erc20Proxy: '0xf1ec01d6236d3cd881a0bf0130ea25fe4234003e',
         erc721Proxy: '0x2a9127c745688a165106c11cd4d647d2220af821',
         zrxToken: '0x2002d3812f58e35f0ea1ffbf80a75a38c32175fa',
         etherToken: '0xd0a1e359811322d97991e03f863a0c30c2cf029c',
-        exchange: '0x35dd2932454449b14cee11a94d3674a936d5d7b2',
+        exchange: '0x30589010550762d2f0d06f650d8e8b6ade6dbf4b',
         assetProxyOwner: '0x2c824d2882baa668e0d5202b1e7f2922278703f8',
-        forwarder: '0x17992e4ffb22730138e4b62aaa6367fa9d3699a6',
+        forwarder: '0x1ebdc9758e85c1c6a85af06cc96cf89000a31913',
         orderValidator: '0xb389da3d204b412df2f75c6afb3d0a7ce0bc283d',
-        dutchAuction: '0xe11667fb51f34c5367f40d7e379327ce32ee7150',
+        dutchAuction: '0xe5f862f7811af180990025b6259b02feb0a0b8dc',
         coordinatorRegistry: '0x09fb99968c016a3ff537bf58fb3d9fe55a7975d5',
-        coordinator: '0x25aae5b981ce6683cc5aeea1855d927e0b59066f',
+        coordinator: '0x2ba02e03ee0029311e0f43715307870a3e701b53',
     },
     // NetworkId 50 represents our Ganache snapshot generated from migrations.
     50: {
diff --git a/python-packages/contract_addresses/src/zero_ex/contract_addresses/__init__.py b/python-packages/contract_addresses/src/zero_ex/contract_addresses/__init__.py
index 93c4123942..78f8480c4d 100644
--- a/python-packages/contract_addresses/src/zero_ex/contract_addresses/__init__.py
+++ b/python-packages/contract_addresses/src/zero_ex/contract_addresses/__init__.py
@@ -66,52 +66,52 @@ class NetworkId(Enum):
 
 NETWORK_TO_ADDRESSES: Dict[NetworkId, ContractAddresses] = {
     NetworkId.MAINNET: ContractAddresses(  # nosec
-        erc20_proxy="0x2240dab907db71e64d3e0dba4800c83b5c502d4e",
-        erc721_proxy="0x208e41fb445f1bb1b6780d58356e81405f3e6127",
+        erc20_proxy="0x95e6f48254609a6ee006f7d493c8e5fb97094cef",
+        erc721_proxy="0xefc70a1b18c432bdc64b596838b4d138f6bc6cad",
         zrx_token="0xe41d2489571d322189246dafa5ebde1f4699f498",
         ether_token="0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
-        exchange="0x4f833a24e1f95d70f028921e27040ca56e09ab0b",
-        asset_proxy_owner="0x17992e4ffb22730138e4b62aaa6367fa9d3699a6",
-        forwarder="0x5468a1dc173652ee28d249c271fa9933144746b1",
-        order_validator="0x9463e518dea6810309563c81d5266c1b1d149138",
+        exchange="0x080bf510fcbf18b91105470639e9561022937712",
+        asset_proxy_owner="0xdffe798c7172dd6deb32baee68af322e8f495ce0",
+        forwarder="0x76481caa104b5f6bccb540dae4cefaf1c398ebea",
+        order_validator="0xa09329c6003c9a5402102e226417738ee22cf1f2",
         coordinator_registry="0x45797531b873fd5e519477a070a955764c1a5b07",
-        coordinator="0x25aae5b981ce6683cc5aeea1855d927e0b59066f",
+        coordinator="0xa14857e8930acd9a882d33ec20559beb5479c8a6",
     ),
     NetworkId.ROPSTEN: ContractAddresses(  # nosec
         erc20_proxy="0xb1408f4c245a23c31b98d2c626777d4c0d766caa",
         erc721_proxy="0xe654aac058bfbf9f83fcaee7793311dd82f6ddb4",
         zrx_token="0xff67881f8d12f372d91baae9752eb3631ff0ed00",
         ether_token="0xc778417e063141139fce010982780140aa0cd5ab",
-        exchange="0x4530c0483a1633c7a1c97d2c53721caff2caaaaf",
+        exchange="0xbff9493f92a3df4b0429b6d00743b3cfb4c85831",
         asset_proxy_owner="0xf5fa5b5fed2727a0e44ac67f6772e97977aa358b",
-        forwarder="0x2240dab907db71e64d3e0dba4800c83b5c502d4e",
+        forwarder="0x1ebdc9758e85c1c6a85af06cc96cf89000a31913",
         order_validator="0x90431a90516ab49af23a0530e04e8c7836e7122f",
         coordinator_registry="0x403cc23e88c17c4652fb904784d1af640a6722d9",
-        coordinator="0x25aae5b981ce6683cc5aeea1855d927e0b59066f",
+        coordinator="0x2ba02e03ee0029311e0f43715307870a3e701b53",
     ),
     NetworkId.RINKEBY: ContractAddresses(  # nosec
-        exchange="0xbce0b5f6eb618c565c3e5f5cd69652bbc279f44e",
+        exchange="0xbff9493f92a3df4b0429b6d00743b3cfb4c85831",
         erc20_proxy="0x2f5ae4f6106e89b4147651688a92256885c5f410",
         erc721_proxy="0x7656d773e11ff7383a14dcf09a9c50990481cd10",
         zrx_token="0x8080c7e4b81ecf23aa6f877cfbfd9b0c228c6ffa",
         ether_token="0xc778417e063141139fce010982780140aa0cd5ab",
         asset_proxy_owner="0xe1703da878afcebff5b7624a826902af475b9c03",
-        forwarder="0x2d40589abbdee84961f3a7656b9af7adb0ee5ab4",
+        forwarder="0x1ebdc9758e85c1c6a85af06cc96cf89000a31913",
         order_validator="0x0c5173a51e26b29d6126c686756fb9fbef71f762",
         coordinator_registry="0x1084b6a398e47907bae43fec3ff4b677db6e4fee",
-        coordinator="0x25aae5b981ce6683cc5aeea1855d927e0b59066f",
+        coordinator="0x2ba02e03ee0029311e0f43715307870a3e701b53",
     ),
     NetworkId.KOVAN: ContractAddresses(  # nosec
         erc20_proxy="0xf1ec01d6236d3cd881a0bf0130ea25fe4234003e",
         erc721_proxy="0x2a9127c745688a165106c11cd4d647d2220af821",
         zrx_token="0x2002d3812f58e35f0ea1ffbf80a75a38c32175fa",
         ether_token="0xd0a1e359811322d97991e03f863a0c30c2cf029c",
-        exchange="0x35dd2932454449b14cee11a94d3674a936d5d7b2",
+        exchange="0x30589010550762d2f0d06f650d8e8b6ade6dbf4b",
         asset_proxy_owner="0x2c824d2882baa668e0d5202b1e7f2922278703f8",
-        forwarder="0x17992e4ffb22730138e4b62aaa6367fa9d3699a6",
+        forwarder="0x1ebdc9758e85c1c6a85af06cc96cf89000a31913",
         order_validator="0xb389da3d204b412df2f75c6afb3d0a7ce0bc283d",
         coordinator_registry="0x09fb99968c016a3ff537bf58fb3d9fe55a7975d5",
-        coordinator="0x25aae5b981ce6683cc5aeea1855d927e0b59066f",
+        coordinator="0x2ba02e03ee0029311e0f43715307870a3e701b53",
     ),
     NetworkId.GANACHE: ContractAddresses(  # nosec
         exchange="0x48bacb9266a570d521063ef5dd96e61686dbe788",