diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 1f66312..5d914a2 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Check out branch
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up python
         uses: actions/setup-python@v5
         with: