diff --git a/.github/workflows/flask.yml b/.github/workflows/flask.yml
index 18b6768..d73d16b 100644
--- a/.github/workflows/flask.yml
+++ b/.github/workflows/flask.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python 3.10
       uses: actions/setup-python@v4
       with: