diff --git a/README.md b/README.md
index f8738421c..dc07b264c 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
 [![][dependencies-badge]][dependencies-link]
 [![][himawari-badge]][himasaku]
 [![][sakurako-badge]][himasaku]
-[![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat-square)](http://makeapullrequest.com)
+[![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat-square)](http://makeapullrequest.com) [![Greenkeeper badge](https://badges.greenkeeper.io/syuilo/misskey.svg)](https://greenkeeper.io/)
 
 > Lead Maintainer: [syuilo][syuilo-link]