diff --git a/.github/workflows/test-ci.yml b/.github/workflows/test-ci.yml
index 4f10127..9cc1172 100644
--- a/.github/workflows/test-ci.yml
+++ b/.github/workflows/test-ci.yml
@@ -11,7 +11,7 @@ jobs:
         os: ['ubuntu-latest', 'macos-latest']
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v5
       with: