diff --git a/gunicorn/__init__.py b/gunicorn/__init__.py
index 8d63a75a..23ee4752 100644
--- a/gunicorn/__init__.py
+++ b/gunicorn/__init__.py
@@ -3,5 +3,5 @@
 # This file is part of gunicorn released under the MIT license. 
 # See the NOTICE for more information.
 
-version_info = (0, 8, 2)
+version_info = (0, 9, '0-dev')
 __version__ = ".".join(map(str, version_info))