diff --git a/app/package.json b/app/package.json
index 65eec818bf..07fac094c7 100644
--- a/app/package.json
+++ b/app/package.json
@@ -53,6 +53,7 @@
     "@jupyterlab/filebrowser-extension": "~4.1.0-alpha.2",
     "@jupyterlab/fileeditor": "~4.1.0-alpha.2",
     "@jupyterlab/fileeditor-extension": "~4.1.0-alpha.2",
+    "@jupyterlab/help-extension": "~4.1.0-alpha.2",
     "@jupyterlab/htmlviewer": "~4.1.0-alpha.2",
     "@jupyterlab/htmlviewer-extension": "~4.1.0-alpha.2",
     "@jupyterlab/hub-extension": "~4.1.0-alpha.2",