diff --git a/CHANGELOG.md b/CHANGELOG.md
index e15ccca21..45eaa6908 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Current Master
 
+## 4.5.5 Fri Apr 06 2018
+
 - Graceful handling of unknown keys in txParams
 - Fixes buggy handling of historical transactions with unknown keys in txParams
 - Fix link for 'Learn More' in the Add Token Screen to open to a new tab.
diff --git a/app/manifest.json b/app/manifest.json
index 5aa14b1e9..dc46f1ca4 100644
--- a/app/manifest.json
+++ b/app/manifest.json
@@ -1,7 +1,7 @@
 {
   "name": "__MSG_appName__",
   "short_name": "__MSG_appName__",
-  "version": "4.5.4",
+  "version": "4.5.5",
   "manifest_version": 2,
   "author": "https://metamask.io",
   "description": "__MSG_appDescription__",