diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4731faffc..45eaa6908 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,21 @@
 # Changelog
 
 ## Current Master
-- Fix link for 'Learn More' in the Add Token Screen to open to a new tab.
 
+## 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.
 - Fix Download State Logs button [#3791](https://github.com/MetaMask/metamask-extension/issues/3791)
+- Enhanced migration error handling + reporting
+
+## 4.5.4 (aborted) Thu Apr 05 2018
+
+- Graceful handling of unknown keys in txParams
+- Fix link for 'Learn More' in the Add Token Screen to open to a new tab.
+- Fix Download State Logs button [#3791](https://github.com/MetaMask/metamask-extension/issues/3791)
+- Fix migration error reporting
 
 ## 4.5.3 Wed Apr 04 2018
 
diff --git a/app/manifest.json b/app/manifest.json
index 61d2c5b5e..dc46f1ca4 100644
--- a/app/manifest.json
+++ b/app/manifest.json
@@ -1,7 +1,7 @@
 {
   "name": "__MSG_appName__",
   "short_name": "__MSG_appName__",
-  "version": "4.5.3",
+  "version": "4.5.5",
   "manifest_version": 2,
   "author": "https://metamask.io",
   "description": "__MSG_appDescription__",