diff --git a/setup.py b/setup.py
index 5625c334..352f92fd 100644
--- a/setup.py
+++ b/setup.py
@@ -9,7 +9,7 @@
 
 setup(
     name='Flask-SocketIO',
-    version='0.4.3',
+    version='0.5.0',
     url='http://github.com/miguelgrinberg/Flask-SocketIO/',
     license='MIT',
     author='Miguel Grinberg',