diff --git a/project.clj b/project.clj
index 70033099..8492240b 100644
--- a/project.clj
+++ b/project.clj
@@ -1,4 +1,4 @@
-(defproject binaryage/chromex "0.3.1-SNAPSHOT"
+(defproject binaryage/chromex "0.4.0"
   :description "A ClojureScript wrapper for writing Chrome Extensions and Apps."
   :url "https://github.com/binaryage/chromex"
   :license {:name         "MIT License"