diff --git a/setup.py b/setup.py
index b02706d..7379d26 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@
 
 setuptools.setup(
     name="casbin_sqlalchemy_adapter",
-    version="0.3.0",
+    version="0.3.1",
     author="TechLee",
     author_email="techlee@qq.com",
     description="SQLAlchemy Adapter for PyCasbin",