diff --git a/README.md b/README.md
index f6c3b24a..5625e761 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 ![Elixir CI](https://github.com/ash-project/ash/workflows/Elixir%20CI/badge.svg)
+[![Coverage Status](https://coveralls.io/repos/github/ash-project/ash/badge.svg?branch=master)](https://coveralls.io/github/ash-project/ash?branch=master)
 
 ## Quick Links