diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cb94ea4..26d738c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
     name: ${{ matrix.name }}
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version-file: '.python-version'