diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index eab2fb1..d3cc8db 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-20.04
     name: ${{ matrix.config[1] }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v4
       with:
@@ -70,6 +70,6 @@ jobs:
       image: ${{ matrix.config[1] }}
     name: ${{ matrix.config[0] }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Test
       run: tox -e ${{ matrix.config[0] }}