diff --git a/python/google/protobuf/__init__.py b/python/google/protobuf/__init__.py
index ec3b093..ef8c9c5 100755
--- a/python/google/protobuf/__init__.py
+++ b/python/google/protobuf/__init__.py
@@ -32,4 +32,4 @@
 #
 # Copyright 2007 Google Inc. All Rights Reserved.
 
-__version__ = '3.0.0-pre'
+__version__ = '3.0.0-alpha-3-pre'