diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f8da21e7..ac8f5528 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -58,6 +58,19 @@ jobs:
           MPLBACKEND: Agg
         run: micromamba run -n myenv python -m pytest --timeout=50 --timeout-method=thread
 
+  all-tests-passed:
+    name: All tests passed
+    needs: test
+    runs-on: ubuntu-latest
+    if: always()
+    steps:
+      - name: Check test matrix result
+        run: |
+          if [ "${{ needs.test.result }}" != "success" ]; then
+            echo "test matrix did not succeed: ${{ needs.test.result }}"
+            exit 1
+          fi
+
   codecov:
     needs: test
     if: github.event_name == 'push'