diff --git a/ui-tests/jupyter_server_config.py b/ui-tests/jupyter_server_config.py
index 7cef023b8..32d093dde 100644
--- a/ui-tests/jupyter_server_config.py
+++ b/ui-tests/jupyter_server_config.py
@@ -3,5 +3,6 @@
 c.ServerApp.password = ""
 c.ServerApp.disable_check_xsrf = True
 c.ServerApp.open_browser = False
+c.ServerApp.jpserver_extensions = { "@jupyterlab/apputils-extension:notification": True }
 c.LabApp.open_browser = False
 c.LabApp.expose_app_in_browser = True