diff --git a/README.md b/README.md
index 569fe68..7bcdaf8 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,7 @@
 # nohang
 
 [![Build Status](https://travis-ci.org/hakavlad/nohang.svg?branch=master)](https://travis-ci.org/hakavlad/nohang)
+![CodeQL](https://github.com/hakavlad/nohang/workflows/CodeQL/badge.svg)
 [![Total alerts](https://img.shields.io/lgtm/alerts/g/hakavlad/nohang.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/hakavlad/nohang/alerts/)
 [![Packaging status](https://repology.org/badge/tiny-repos/nohang.svg)](https://repology.org/project/nohang/versions)