diff --git a/.github/workflows/deploy_bookdown.yml b/.github/workflows/deploy_bookdown.yml
index 42ad7b7..f8f059d 100644
--- a/.github/workflows/deploy_bookdown.yml
+++ b/.github/workflows/deploy_bookdown.yml
@@ -20,7 +20,7 @@ jobs:
         run: Rscript -e 'install.packages(c("rmarkdown","bookdown"))'
       - name: Render Book
         run: Rscript -e 'bookdown::render_book("index.Rmd")'
-      - uses: actions/upload-artifact@v1
+      - uses: actions/upload-artifact@v4
         with:
           name: _book
           path: _book/