diff --git a/.github/workflows/build_book.yml b/.github/workflows/build_book.yml
index 5e4eb7cd..5fc26bb8 100644
--- a/.github/workflows/build_book.yml
+++ b/.github/workflows/build_book.yml
@@ -60,7 +60,7 @@ jobs:
       - name: Build PDF from HTML (Docs)
         run: make pdf
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: PDF_HTML
           path: jupyter-book/_build/pdf/book.pdf