diff --git a/.github/workflows/deploy-docs.yml b/.github/workflows/deploy-docs.yml
index 7f78b19..11c7337 100644
--- a/.github/workflows/deploy-docs.yml
+++ b/.github/workflows/deploy-docs.yml
@@ -105,7 +105,7 @@ jobs:
           test -f docs/_build/html/index.html && echo "✓ index.html exists" || echo "✗ index.html missing"
 
       - name: Upload build artifacts
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v4
         if: |
           github.event.workflow_run.head_branch == 'main' ||
           (github.event_name == 'workflow_dispatch' && github.event.inputs.deploy_to_pages == 'true')