diff --git a/README.md b/README.md
index f31954b1..154747ed 100755
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 
 [![Build Status](https://travis-ci.com/an-tao/drogon.svg?branch=master)](https://travis-ci.com/an-tao/drogon)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/45f8a65ca1844788b9109c0044a618f8)](https://app.codacy.com/app/an-tao/drogon?utm_source=github.com&utm_medium=referral&utm_content=an-tao/drogon&utm_campaign=Badge_Grade_Dashboard)
+[![Total alerts](https://img.shields.io/lgtm/alerts/g/an-tao/drogon.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/an-tao/drogon/alerts/)
 
 **Drogon** is a C++11-based HTTP application framework. Drogon can be used to easily build various types of web application server programs using C++. **Drogon** is the name of a dragon in the American TV series "Game of Thrones" that I really like. 
 
diff --git a/README.zh-CN.md b/README.zh-CN.md
index 1bb32c03..45b2f9da 100755
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -2,6 +2,7 @@
 
 [![Build Status](https://travis-ci.com/an-tao/drogon.svg?branch=master)](https://travis-ci.com/an-tao/drogon)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/45f8a65ca1844788b9109c0044a618f8)](https://app.codacy.com/app/an-tao/drogon?utm_source=github.com&utm_medium=referral&utm_content=an-tao/drogon&utm_campaign=Badge_Grade_Dashboard)
+[![Total alerts](https://img.shields.io/lgtm/alerts/g/an-tao/drogon.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/an-tao/drogon/alerts/)
 
 **Drogon**是一个基于C++11的Http应用框架，使用Drogon可以方便的使用C++构建各种类型的Web应用服务端程序。
 本版本库是github上[Drogon工程](https://github.com/an-tao/drogon)的镜像库。**Drogon**是作者非常喜欢的美剧《权力的游戏》中的一条龙的名字(汉译作卓耿)，和龙有关但并不是dragon的误写，为了不至于引起不必要的误会这里说明一下。