diff --git a/lib/mittsu/version.rb b/lib/mittsu/version.rb
index de461bc..68f1f40 100644
--- a/lib/mittsu/version.rb
+++ b/lib/mittsu/version.rb
@@ -1,3 +1,3 @@
 module Mittsu
-  VERSION = "0.5.0.dev"
+  VERSION = "0.5.0"
 end