diff --git a/contracts/extensions/package.json b/contracts/extensions/package.json
index ad45073dc4..25c2843e8e 100644
--- a/contracts/extensions/package.json
+++ b/contracts/extensions/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-extensions",
-    "version": "1.0.2",
+    "version": "1.2.0",
     "engines": {
         "node": ">=6.12"
     },
diff --git a/packages/abi-gen-wrappers/CHANGELOG.json b/packages/abi-gen-wrappers/CHANGELOG.json
index d46e828f40..990d4110f8 100644
--- a/packages/abi-gen-wrappers/CHANGELOG.json
+++ b/packages/abi-gen-wrappers/CHANGELOG.json
@@ -1,4 +1,14 @@
 [
+    {
+        "version": "2.1.0",
+        "changes": [
+            {
+                "note": "Added Dutch Auction Wrapper",
+                "pr": 1465
+            }
+        ],
+        "timestamp": 1542821676
+    },
     {
         "version": "2.0.2",
         "changes": [
diff --git a/packages/contract-addresses/CHANGELOG.json b/packages/contract-addresses/CHANGELOG.json
index 21ffaf5109..dd0246fe9b 100644
--- a/packages/contract-addresses/CHANGELOG.json
+++ b/packages/contract-addresses/CHANGELOG.json
@@ -1,4 +1,13 @@
 [
+    {
+        "version": "2.1.0",
+        "changes": [
+            {
+                "note": "Added entries for Dutch Auction contract",
+                "pr": 1465
+            }
+        ]
+    },
     {
         "version": "2.0.0",
         "changes": [
diff --git a/packages/contract-addresses/package.json b/packages/contract-addresses/package.json
index c75ae6efae..c5a133ddfc 100644
--- a/packages/contract-addresses/package.json
+++ b/packages/contract-addresses/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0x/contract-addresses",
-    "version": "2.0.0",
+    "version": "2.1.0",
     "engines": {
         "node": ">=6.12"
     },
diff --git a/packages/contract-artifacts/CHANGELOG.json b/packages/contract-artifacts/CHANGELOG.json
index 03c88e71a2..b033943d23 100644
--- a/packages/contract-artifacts/CHANGELOG.json
+++ b/packages/contract-artifacts/CHANGELOG.json
@@ -1,4 +1,13 @@
 [
+    {
+        "version": "1.2.0",
+        "changes": [
+            {
+                "pr": 1465,
+                "note": "Added artifact for Dutch Auction contract"
+            }
+        ]
+    },
     {
         "version": "1.1.2",
         "changes": [
diff --git a/packages/contract-artifacts/package.json b/packages/contract-artifacts/package.json
index 71d8875459..b819520c6d 100644
--- a/packages/contract-artifacts/package.json
+++ b/packages/contract-artifacts/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0x/contract-artifacts",
-    "version": "1.1.2",
+    "version": "1.2.0",
     "engines": {
         "node": ">=6.12"
     },
diff --git a/packages/contract-wrappers/package.json b/packages/contract-wrappers/package.json
index f3f7301fd9..c6921d70be 100644
--- a/packages/contract-wrappers/package.json
+++ b/packages/contract-wrappers/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0x/contract-wrappers",
-    "version": "4.1.3",
+    "version": "4.2.0",
     "description": "Smart TS wrappers for 0x smart contracts",
     "keywords": [
         "0xproject",
diff --git a/packages/migrations/CHANGELOG.json b/packages/migrations/CHANGELOG.json
index e7b18f12b1..cee64a69f7 100644
--- a/packages/migrations/CHANGELOG.json
+++ b/packages/migrations/CHANGELOG.json
@@ -1,4 +1,13 @@
 [
+    {
+        "version": "2.3.0",
+        "changes": [
+            {
+                "note": "Added migrations for Dutch Auction contract",
+                "pr": 1465
+            }
+        ]
+    },
     {
         "version": "2.2.2",
         "changes": [
diff --git a/packages/migrations/package.json b/packages/migrations/package.json
index 72ffe67b2e..9892d7b30a 100644
--- a/packages/migrations/package.json
+++ b/packages/migrations/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0x/migrations",
-    "version": "2.2.2",
+    "version": "2.3.0",
     "engines": {
         "node": ">=6.12"
     },
diff --git a/packages/types/CHANGELOG.json b/packages/types/CHANGELOG.json
index fdb421e79e..7094953cb2 100644
--- a/packages/types/CHANGELOG.json
+++ b/packages/types/CHANGELOG.json
@@ -1,4 +1,13 @@
 [
+    {
+        "version": "1.5.0",
+        "changes": [
+            {
+                "note": "Added types for Dutch Auction contract",
+                "pr": 1465
+            }
+        ]
+    },
     {
         "version": "1.4.1",
         "changes": [
diff --git a/packages/types/package.json b/packages/types/package.json
index 3c4bb6fe6d..75c3b7c635 100644
--- a/packages/types/package.json
+++ b/packages/types/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0x/types",
-    "version": "1.4.1",
+    "version": "1.5.0",
     "engines": {
         "node": ">=6.12"
     },