diff --git a/.github/workflows/undefined_names.yml b/.github/workflows/undefined_names.yml
index 2213423..c779602 100644
--- a/.github/workflows/undefined_names.yml
+++ b/.github/workflows/undefined_names.yml
@@ -4,7 +4,7 @@ jobs:
   undefined_names:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: actions/setup-python@v5
       - run: pip install --upgrade pip
       - run: pip install flake8