diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 6e60936..75edc9a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,6 +13,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v2
+      - name: List
+        run: docker ps
       - name: Run
         uses: ./
         with: