diff --git a/README.md b/README.md
index ff96cdb..3b2b2db 100644
--- a/README.md
+++ b/README.md
@@ -3,5 +3,6 @@
 [![Build Status](https://secure.travis-ci.org/hyoshida/poteti.png)](http://travis-ci.org/hyoshida/poteti)
 [![Code Climate](https://codeclimate.com/github/hyoshida/poteti.png)](https://codeclimate.com/github/hyoshida/poteti)
 [![Coverage Status](https://coveralls.io/repos/hyoshida/poteti/badge.png)](https://coveralls.io/r/hyoshida/poteti)
+[![Dependency Status](https://gemnasium.com/hyoshida/poteti.svg)](https://gemnasium.com/hyoshida/poteti)
 
 This project rocks and uses MIT-LICENSE.