diff --git a/.github/workflows/build-deploy.yml b/.github/workflows/build-deploy.yml
index 1c1b97a..af45b38 100644
--- a/.github/workflows/build-deploy.yml
+++ b/.github/workflows/build-deploy.yml
@@ -10,7 +10,7 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Setup mdBook
         uses: peaceiris/actions-mdbook@v2