diff --git a/project/Constants.scala b/project/Constants.scala
index ef97c549d..92d20b3e2 100644
--- a/project/Constants.scala
+++ b/project/Constants.scala
@@ -1,4 +1,4 @@
 package ammonite
 object Constants{
-  val version = "0.3.3-SNAPSHOT"
+  val version = "0.4.0"
 }