diff --git a/README.md b/README.md
index d7c1e06..a0ba646 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@
 [![dev workflow](https://github.com/waynerv/flask-mailman/actions/workflows/dev.yml/badge.svg?branch=master)](https://github.com/waynerv/flask-mailman/actions/workflows/dev.yml)
 ![GitHub commits since latest release (by SemVer)](https://img.shields.io/github/commits-since/waynerv/flask-mailman/latest?color=cyan)
 ![PyPI - License](https://img.shields.io/pypi/l/flask-mailman?color=blue)
+[![codecov](https://codecov.io/gh/waynerv/flask-mailman/graph/badge.svg?token=bCkkuXW4dX)](https://codecov.io/gh/waynerv/flask-mailman)
 
 Flask-Mailman is a Flask extension providing simple email sending capabilities.