diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index 9df79a6..7eb745c 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -69,8 +69,8 @@ jobs:
 
     - name: Upload results to coveralls
       run: |
-        pip install coveralls
-        coveralls --service=github
+        poetry run pip install coveralls
+        poetry run coveralls --service=github
 
       env:
         COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}