diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 03b8e032..5f6dfe7e 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -31,7 +31,7 @@ jobs:
         pip install 'numpy<2.0'
         pip install matplotlib #Some imports require matplotlib
         pip install scipy #To not skip tests
-        pip install flake8 meson-python ninja pytest
+        pip install flake8 meson-python ninja pytest coveralls
         # if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
 
     - name: Checkout Clawpack
@@ -53,4 +53,14 @@ jobs:
     - name: Test with pytest
       run: |
         cd ${CLAW}/pyclaw
-        pytest --ignore=development -k "not test_shallow_sphere"
+        coverage run --source=src -m pytest --ignore=development -k "not test_shallow_sphere"
+
+    - name: Upload to Coveralls
+      if: always()
+      run: |
+        cd ${CLAW}/pyclaw
+        ls -l .coverage
+        coveralls
+      env:
+        COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/README.md b/README.md
index 32813780..03ead5d1 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,5 @@
 [![Build Status](https://github.com/clawpack/pyclaw/actions/workflows/testing.yml/badge.svg)](https://github.com/clawpack/pyclaw/actions)
-[![Coverage Status](https://img.shields.io/coveralls/clawpack/pyclaw.svg)](https://coveralls.io/r/clawpack/pyclaw?branch=master)
-
+[![Coverage Status](https://coveralls.io/repos/github/clawpack/pyclaw/badge.svg?branch=master)](https://coveralls.io/r/clawpack/pyclaw?branch=master)
 [![PyPI version](https://badge.fury.io/py/clawpack.svg)](https://badge.fury.io/py/clawpack)