diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 99f0855..9044277 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
           cache: pip
           cache-dependency-path: setup.py
-      - run: pip install .[test]
+      - run: pip install .[test] coveralls
       - run: pytest --cov agatecharts
       - env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}