diff --git a/lib/execjs/version.rb b/lib/execjs/version.rb
index 2cc16b7..f1988a4 100644
--- a/lib/execjs/version.rb
+++ b/lib/execjs/version.rb
@@ -1,3 +1,3 @@
 module ExecJS
-  VERSION = "1.3.2"
+  VERSION = "1.4.0"
 end