diff --git a/setup.py b/setup.py
index edb5acd..34aa858 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@ def run(self):
 
 setup(
     name="Flask-Annex",
-    version='0.3.1',
+    version='0.4.0',
     description="Efficient integration of external storage services for Flask",
     url='https://github.com/4Catalyzer/flask-annex',
     author="Jimmy Jia",