diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 251a87e..7759a48 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -69,4 +69,4 @@ jobs:
           pip install -e ".[dev]"
 
       - name: Run tests with pytest
-        run: pytest
+        run: pytest --cov --cov-report=xml
diff --git a/README.md b/README.md
index 4d47efa..9ed512f 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,8 @@
 # WIP; Sound Source Estimator
 
+[![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)
+
 Brief description of the project and what it aims to accomplish.
 
 ## Table of Contents
diff --git a/pyproject.toml b/pyproject.toml
index 71bddda..20e70b1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,6 +22,7 @@ dev = [
     "ruff~=0.7.1",
     "pre-commit~=3.5.0",
     "pytest~=8.3.3",
+    "pytest-cov",
 ]
 
 [tool.setuptools]