diff --git a/.github/workflows/postmerge.yaml b/.github/workflows/postmerge.yaml
index 985dce9..cb18606 100644
--- a/.github/workflows/postmerge.yaml
+++ b/.github/workflows/postmerge.yaml
@@ -44,7 +44,7 @@ jobs:
           name: docs
           path: docs-dist
       - name: Upload pages artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v4
         with:
           path: docs-dist
       - name: Deploy to GitHub Pages