diff --git a/lib/VERSION b/lib/VERSION
index cdaac0549981f253cb8e820b81987d067b9b1bfb..ee13885f41dbf5316d953b0c7e563ea38bf7badd 100644
--- a/lib/VERSION
+++ b/lib/VERSION
@@ -1 +1 @@
-VERSION="v0.3.1pre"
+VERSION="v0.4.0pre"