diff --git a/.github/workflows/mdbook.yml b/.github/workflows/mdbook.yml
index c0094d6..d82f67f 100644
--- a/.github/workflows/mdbook.yml
+++ b/.github/workflows/mdbook.yml
@@ -54,7 +54,7 @@ jobs:
             --root-dir "${{ github.workspace }}/docs/book"
             ./docs/book
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v4
         with:
           path: ./docs/book