diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 82c3cf6..115a958 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -21,7 +21,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Setup mdBook
-        uses: peaceiris/actions-mdbook@v1
+        uses: peaceiris/actions-mdbook@v2
         with:
           mdbook-version: '0.4.21'
           # mdbook-version: 'latest'