diff --git a/CHANGELOG.md b/CHANGELOG.md
index aa9e1ab6c..c738ac375 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 ## Current Master
 
+## 3.9.12 2017-9-6
+
+- Fix bug that prevented Web3 1.0 compatibility
 - Make eth_sign deprecation warning less noisy
 - Add useful link to eth_sign deprecation warning.
 - Fix bug with network version serialization over synchronous RPC
diff --git a/app/manifest.json b/app/manifest.json
index 7ec32ea78..256737c89 100644
--- a/app/manifest.json
+++ b/app/manifest.json
@@ -1,7 +1,7 @@
 {
   "name": "MetaMask",
   "short_name": "Metamask",
-  "version": "3.9.11",
+  "version": "3.9.12",
   "manifest_version": 2,
   "author": "https://metamask.io",
   "description": "Ethereum Browser Extension",