diff --git a/.github/workflows/CI_Tests.yml b/.github/workflows/CI_Tests.yml
index fded29d1..54fe4066 100644
--- a/.github/workflows/CI_Tests.yml
+++ b/.github/workflows/CI_Tests.yml
@@ -29,9 +29,16 @@ jobs:
     - name: Install this package
       run: pip install -e '.[dev]'
     
-    - name: Run pytest
-      run: pytest
+    - name: Run tests and generate coverage reports
+      run: pytest --cov tests/
     
+    - name: Upload coverage reports to codecov
+      if: runner.os == 'Linux'
+      uses: codecov/codecov-action@v5
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}
+        files: coverage.info
+        
     - name: Run the smoke tests
       run: |
         music_box -c src/acom_music_box/examples/configs/analytical/my_config.json -o output.csv
diff --git a/README.md b/README.md
index 4e1cf4a5..019c8669 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,7 @@ MusicBox: A MUSICA model for boxes and columns.
 
 [![License](https://img.shields.io/github/license/NCAR/music-box.svg)](https://github.com/NCAR/music-box/blob/main/LICENSE)
 [![CI Status](https://github.com/NCAR/music-box/actions/workflows/CI_Tests.yml/badge.svg)](https://github.com/NCAR/music-box/actions/workflows/CI_Tests.yml)
+[![codecov](https://codecov.io/github/NCAR/music-box/graph/badge.svg?token=OR7JEQJSRQ)](https://codecov.io/github/NCAR/music-box)
 [![PyPI version](https://badge.fury.io/py/acom-music-box.svg)](https://badge.fury.io/py/acom-music-box)
 [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.14008358.svg)](https://doi.org/10.5281/zenodo.14008358)
 
diff --git a/pyproject.toml b/pyproject.toml
index 1f59b3d8..0a2eda7d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,5 +41,6 @@ waccmToMusicBox = "acom_music_box.tools.waccmToMusicBox:main"
 [project.optional-dependencies]
 dev = [
   "pytest",
-  "pytest-mock"
+  "pytest-mock",
+  "pytest-cov"
 ]
\ No newline at end of file