diff --git a/.github/workflows/undefined_names.yml b/.github/workflows/undefined_names.yml
index 65f25f8d..0e0a78c5 100644
--- a/.github/workflows/undefined_names.yml
+++ b/.github/workflows/undefined_names.yml
@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
       - run: pip install --upgrade pip
       - run: pip install flake8
       - run: flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics