diff --git a/.gitea/workflows/python-pep8.yaml b/.gitea/workflows/python-pep8.yaml
index 6419340..22bd1f3 100644
--- a/.gitea/workflows/python-pep8.yaml
+++ b/.gitea/workflows/python-pep8.yaml
@@ -11,7 +11,7 @@ jobs:
         uses: actions/checkout@v3
       - uses: https://github.com/actions/setup-python@v4
         with:
-          python-version: '3.9'
+          python-version: '3.9.16'
 
       - name: Install dependencies
         run: |