diff --git a/eventlet/__init__.py b/eventlet/__init__.py
index 2aaf57d..e499d00 100644
--- a/eventlet/__init__.py
+++ b/eventlet/__init__.py
@@ -1,4 +1,4 @@
-version_info = (0, 9, 15)
+version_info = (0, 9, 16, "dev")
 __version__ = ".".join(map(str, version_info))
 
 try: