diff --git a/.github/workflows/deploy_site.yml b/.github/workflows/deploy_site.yml
index 6ae349b..2e10704 100644
--- a/.github/workflows/deploy_site.yml
+++ b/.github/workflows/deploy_site.yml
@@ -30,7 +30,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Python
         uses: actions/setup-python@v5