diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5ec7823..059f67c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,13 @@
+## 0.5
+
+### Breaking Changes
+
+- None
+
+### Added
+- [#43](https://github.com/IFTTT/polo/pull/43) Rails 5 support
+- [#44](https://github.com/IFTTT/polo/pull/44) Remove all Rails 5 deprecation notices
+
 ## 0.4.1
 
 ### Breaking Changes
diff --git a/lib/polo/version.rb b/lib/polo/version.rb
index 307bbd2..7502a8a 100644
--- a/lib/polo/version.rb
+++ b/lib/polo/version.rb
@@ -1,3 +1,3 @@
 module Polo
-  VERSION = "0.4.1"
+  VERSION = "0.5.0"
 end