diff --git a/CHANGELOG.md b/CHANGELOG.md
index cd1297f7..c64f4222 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@
 
 ### bug fix
 
+## 2.1.2 (May 18, 2017)
+
+### bug fix
+
+* Support YAML serialization for the custom AR type. (by [@lest](https://github.com/lest))
+
 ## 2.1.1 (May 1, 2017)
 
 ### enhancements
diff --git a/lib/enumerize/version.rb b/lib/enumerize/version.rb
index f1682354..f76ae3da 100644
--- a/lib/enumerize/version.rb
+++ b/lib/enumerize/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Enumerize
-  VERSION = '2.1.1'
+  VERSION = '2.1.2'
 end