diff --git a/lib/cppjieba_rb/version.rb b/lib/cppjieba_rb/version.rb
index 9c86a73..8726c19 100644
--- a/lib/cppjieba_rb/version.rb
+++ b/lib/cppjieba_rb/version.rb
@@ -1,3 +1,3 @@
 module CppjiebaRb
-  VERSION = '0.3.3'
+  VERSION = '0.4.0'
 end