diff --git a/eventlet/__init__.py b/eventlet/__init__.py
index e8bd5c1..d9db8c2 100644
--- a/eventlet/__init__.py
+++ b/eventlet/__init__.py
@@ -1,4 +1,4 @@
-version_info = (0, 15, 2)
+version_info = (0, 16, 0, 'dev')
 __version__ = '.'.join(map(str, version_info))
 
 try: