diff --git a/.github/workflows/python.yaml b/.github/workflows/python.yaml
index d891110c..835a4e48 100644
--- a/.github/workflows/python.yaml
+++ b/.github/workflows/python.yaml
@@ -31,6 +31,4 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.11'
-        run: |
-          pip install --upgrade coveralls
-          coveralls --service=github
+        uses: coverallsapp/github-action@v2
diff --git a/docs/contributing.rst b/docs/contributing.rst
index 31d3c73a..96bdfb1d 100644
--- a/docs/contributing.rst
+++ b/docs/contributing.rst
@@ -196,6 +196,10 @@ Find more detailed information in `creating a PR`_. You might also want to open
 the PR as a draft first and mark it as ready for review after the feedbacks
 from the continuous integration (CI) system or any required fixes.
 
+We track test coverage using coveralls_. You can check the coverage
+of your PR by clicking on the "details" link in the "Coverage" section of
+the pull request checks.  Try to ensure that your pull requests always increase
+test coverage.
 
 Troubleshooting
 ---------------
@@ -281,6 +285,7 @@ on PyPI_, the following steps can be used to release a new version for
 .. |tox| replace:: ``tox``
 
 
+.. _coveralls: https://coveralls.io/github/OSeMOSYS/otoole
 .. _black: https://pypi.org/project/black/
 .. _CommonMark: https://commonmark.org/
 .. _contribution-guide.org: https://www.contribution-guide.org/
diff --git a/setup.cfg b/setup.cfg
index 50272515..8276af0e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -87,7 +87,7 @@ console_scripts =
 # CAUTION: --cov flags may prohibit setting breakpoints while debugging.
 #          Comment those flags to avoid this pytest issue.
 addopts =
-    --cov otoole --cov-report html
+    --cov otoole --cov-report lcov
     --verbose
     -s
     # --log-cli-level=10