diff --git a/VERSION b/VERSION
index 9e11b32fcaa96816319e5d0dcff9fb2873f04061..1d0ba9ea182b0f7354f3daf12120744ec5e0c2f8 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.3.1
+0.4.0