diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3ad6ff1dd..37f35c22b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,17 @@
 Changelog
 =========
 
+## 4.2.1 (23 Jun 2016)
+
+### Fixes
+
+* Ensure Rails 2 extensions are not loaded on newer versions
+  | [#303](https://github.com/bugsnag/bugsnag-ruby/issues/303)
+
+* Remove API key logging when Bugsnag is logging successfully
+  | [Julian Borrey](https://github.com/jborrey)
+  | [#299](https://github.com/bugsnag/bugsnag-ruby/pull/299)
+
 ## 4.2.0 (17 Jun 2016)
 
 ### Enhancements
diff --git a/VERSION b/VERSION
index 6aba2b245..fae6e3d04 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.2.0
+4.2.1