diff --git a/.github/workflows/runtests.yml b/.github/workflows/runtests.yml
index f92a983..415e072 100644
--- a/.github/workflows/runtests.yml
+++ b/.github/workflows/runtests.yml
@@ -11,7 +11,7 @@ jobs:
       matrix:
         python-version: [3.7, 3.x]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
         with: