diff --git a/.github/workflows/deploy-doc.yml b/.github/workflows/deploy-doc.yml
index 564f896..1f0ec7e 100644
--- a/.github/workflows/deploy-doc.yml
+++ b/.github/workflows/deploy-doc.yml
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: ./.github/actions/setup-node-pnpm