diff --git a/.github/workflows/tox.yml b/.github/workflows/tox.yml
index 91fb6f5..c319733 100644
--- a/.github/workflows/tox.yml
+++ b/.github/workflows/tox.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Check out code
-        uses: actions/checkout@v1
+        uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v2
         with: