diff --git a/setup.py b/setup.py
index 671e3e773..935c75a21 100755
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@ finally:
 
 setup(
     name="pymongo",
-    version="0.5.1pre",
+    version="0.5.2pre",
     description="Driver for the Mongo database <http://www.mongodb.org>",
     long_description=readme_content,
     author="10gen",