diff --git a/setup.py b/setup.py
index 6f47843..d5bcb3b 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,7 @@
 from setuptools import setup, find_packages
 
 setup(name='cachet-url-monitor',
-      version='0.6.5',
+      version='0.6.6',
       description='Cachet URL monitor plugin',
       author='Mitsuo Takaki',
       author_email='mitsuotakaki@gmail.com',