diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 8370c38..8350705 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -27,9 +27,21 @@ jobs:
         run: |
           sudo apt-get update
           python -m pip install --upgrade pip
-          python -m pip install pytest 
+          python -m pip install pytest coverage 
           python setup.py install
 
       - name: Test with pytest
         run: |
           pytest -s ./tests/
+
+      - name: Run coverage
+        run: |
+          coverage run --source study_lyte -m pytest
+          coverage json
+
+      # Add this
+      - name: Update Coverage Badge
+        # GitHub actions: default branch variable
+        # https://stackoverflow.com/questions/64781462/github-actions-default-branch-variable
+        if: github.ref == format('refs/heads/{0}', github.event.repository.default_branch)
+        uses: we-cli/coverage-badge-action@main
\ No newline at end of file
diff --git a/README.rst b/README.rst
index dbb665b..ed9798d 100644
--- a/README.rst
+++ b/README.rst
@@ -13,6 +13,8 @@ Study Lyte
 .. image:: https://github.com/AdventureData/study_lyte/actions/workflows/build.yml/badge.svg
         :target: https://github.com/AdventureData/study_lyte/actions/workflows/build.yml
 
+.. image:: https://github.com/AdventureData/study_lyte/badges/coverage.svg
+        :target: https://github.com/AdventureData/study_lyte/actions/workflows/testing.yml
 
 Welcome to Adventure Data's python package for doing analysis with data from the Lyte Probe.
 The Lyte probe is a smart ski pole designed to measure snow. It measures NIR and Force simulataneously along with
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 9e60be0..077554a 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -11,4 +11,4 @@ jupyterlab==3.6.1
 pytest==6.2.4
 matplotlib
 nbconvert
-
+coverage