diff --git a/VERSION b/VERSION
index 428b770e3e234822240cb1d877687486143a0161..8da01b25908384a4fdc69eefbecce6a2cfcf3133 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.4.3
+1.5.0-beta1