diff --git a/.github/workflows/mdbook.yml b/.github/workflows/mdbook.yml
index d14b295..3a6f7e9 100644
--- a/.github/workflows/mdbook.yml
+++ b/.github/workflows/mdbook.yml
@@ -44,7 +44,7 @@ jobs:
       - name: Build with mdBook
         run: mdbook build
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v2
+        uses: actions/upload-pages-artifact@v4
         with:
           path: ./book