diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 62248cc..4873927 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
     - name: Build
       run: dotnet build --configuration Release --no-restore
     - name: Setup mdBook
-      uses: peaceiris/actions-mdbook@v1
+      uses: peaceiris/actions-mdbook@v2
       with:
         mdbook-version: '0.4.35'
     - name: Setup nodejs