diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 263c6e7..6924996 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -33,7 +33,7 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v3.5.3
+      - uses: actions/checkout@v4.0.0
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4.7.0
         with: