diff --git a/lib/protobuf/version.rb b/lib/protobuf/version.rb
index 18f0a4c9..d7d20206 100644
--- a/lib/protobuf/version.rb
+++ b/lib/protobuf/version.rb
@@ -1,3 +1,3 @@
 module Protobuf
-  VERSION = '3.0.5'
+  VERSION = '3.1.0'
 end