diff --git a/setup.py b/setup.py
index 86884e7c..703a9a02 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@ class PyTest(TestCommand):
 
 setup(
     name='graphene',
-    version='0.1.5.3',
+    version='0.1.6a1',
 
     description='Graphene: Python DSL for GraphQL',
     long_description=open('README.rst').read(),