diff --git a/.github/workflows/check_format_and_lint.yml b/.github/workflows/check_format_and_lint.yml
index b1b9423..10ae4a8 100644
--- a/.github/workflows/check_format_and_lint.yml
+++ b/.github/workflows/check_format_and_lint.yml
@@ -12,6 +12,9 @@ jobs:
   check_code:
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        
       - name: Install Python
         uses: actions/setup-python@v2
         with: