diff --git a/lib/execjs/pcruntime/version.rb b/lib/execjs/pcruntime/version.rb
index e2f5fcb..34af171 100644
--- a/lib/execjs/pcruntime/version.rb
+++ b/lib/execjs/pcruntime/version.rb
@@ -2,6 +2,6 @@
 
 module Execjs
   module PCRuntime
-    VERSION = '0.3.0'
+    VERSION = '0.4.0'
   end
 end