diff --git a/.github/workflows/ci-testing.yml b/.github/workflows/ci-testing.yml
index a8c110d..9baebe6 100644
--- a/.github/workflows/ci-testing.yml
+++ b/.github/workflows/ci-testing.yml
@@ -13,7 +13,7 @@ jobs:
         bootstrap: [3, 4, 5]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v4
       with: