diff --git a/README.md b/README.md
index 9ed512f..10e8d59 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
 # WIP; Sound Source Estimator
 
+[![CI](https://github.com/wattai/sound-source-position-estimation/actions/workflows/ci.yml/badge.svg)](https://github.com/wattai/sound-source-position-estimation/actions/workflows/ci.yml)
 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
 ![Codecov](https://img.shields.io/codecov/c/github/wattai/sound-source-position-estimation)