diff --git a/.github/workflows/mdbook.yml b/.github/workflows/mdbook.yml
index 03766ad..3e007fd 100644
--- a/.github/workflows/mdbook.yml
+++ b/.github/workflows/mdbook.yml
@@ -49,7 +49,7 @@ jobs:
       - name: Build with mdBook
         run: mdbook build
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v4
         with:
           path: ./book