diff --git a/CHANGELOG.md b/CHANGELOG.md
index 875644409..ba0f480a1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+## 0.3.1 (April 26th, 2011)
+* Fix typo in initialization for older ActiveRecord versions
+
 ## 0.3.0 (April 26th, 2011)
 * switch to MySQL Connector/C for win32 builds
 * win32 bugfixes
diff --git a/lib/mysql2/version.rb b/lib/mysql2/version.rb
index 7aa3e935c..80b2d19fc 100644
--- a/lib/mysql2/version.rb
+++ b/lib/mysql2/version.rb
@@ -1,3 +1,3 @@
 module Mysql2
-  VERSION = "0.3.0"
+  VERSION = "0.3.1"
 end
\ No newline at end of file