diff --git a/notebooks/scenarios/bigquery/upgradability/2-migrate-for-scenarios-k8s.ipynb b/notebooks/scenarios/bigquery/upgradability/2-migrate-for-scenarios-k8s.ipynb
index 6fea6db6a46..a8ad3c880ba 100644
--- a/notebooks/scenarios/bigquery/upgradability/2-migrate-for-scenarios-k8s.ipynb
+++ b/notebooks/scenarios/bigquery/upgradability/2-migrate-for-scenarios-k8s.ipynb
@@ -464,7 +464,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "user_names = [user.name for user in users]"
+    "user_names = [user.name for user in users] + [\"abcdef\"]  # new registered user"
    ]
   },
   {