diff --git a/setup.py b/setup.py
index d0a7e80..9bbe0fa 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 # -*- coding:utf-8 -*-
 from setuptools import setup
 
-VERSION = '0.5.0'
+VERSION = '0.5.1'
 
 REQUIRES = [
     'pyaes>=1.6.1',