diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 78634a5..a95da34 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -8,7 +8,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v7
       with:
         fetch-depth: 0
     - name: Install mdbook