diff --git a/.github/workflows/python-flake8.yml b/.github/workflows/python-flake8.yml
index 19bcdb9..4b0d308 100644
--- a/.github/workflows/python-flake8.yml
+++ b/.github/workflows/python-flake8.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Python
         uses: actions/setup-python@v4  # https://github.com/actions/setup-python