diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 591605f..04e318e 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -10,12 +10,12 @@ jobs:
     runs-on: ubuntu-latest 
     steps:
       - name: Checkout source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           submodules: true
 
       - name: Checkout destination
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         if: github.ref == 'refs/heads/main'
         with:
           ref: gh-pages