diff --git a/.github/workflows/build_docs.yml b/.github/workflows/build_docs.yml
index 3fc068c..a021ea5 100644
--- a/.github/workflows/build_docs.yml
+++ b/.github/workflows/build_docs.yml
@@ -20,7 +20,7 @@ jobs:
       - run: |
           mkdocs build
 
-      - uses: actions/upload-pages-artifact@v3
+      - uses: actions/upload-pages-artifact@v4
         with:
           path: site/