diff --git a/src/test/regress/citus_tests/upgrade/citus_upgrade_test.py b/src/test/regress/citus_tests/upgrade/citus_upgrade_test.py
index 5aa253913..ca8581705 100755
--- a/src/test/regress/citus_tests/upgrade/citus_upgrade_test.py
+++ b/src/test/regress/citus_tests/upgrade/citus_upgrade_test.py
@@ -209,5 +209,7 @@ if __name__ == "__main__":
         config.datadir,
         config.node_name_to_ports,
         config.name,
+        no_output=True,
+        parallel=False,
     )
     main(config)
diff --git a/src/test/regress/citus_tests/upgrade/pg_upgrade_test.py b/src/test/regress/citus_tests/upgrade/pg_upgrade_test.py
index 045ae42e1..05bc590bf 100755
--- a/src/test/regress/citus_tests/upgrade/pg_upgrade_test.py
+++ b/src/test/regress/citus_tests/upgrade/pg_upgrade_test.py
@@ -66,10 +66,10 @@ def citus_finish_pg_upgrade(pg_path, node_ports):
 
 def stop_all_databases(old_bindir, new_bindir, old_datadir, new_datadir, config):
     common.stop_databases(
-        old_bindir, old_datadir, config.node_name_to_ports, config.name
+        old_bindir, old_datadir, config.node_name_to_ports, config.name, no_output=True, parallel=False,
     )
     common.stop_databases(
-        new_bindir, new_datadir, config.node_name_to_ports, config.name
+        new_bindir, new_datadir, config.node_name_to_ports, config.name, no_output=True, parallel=False,
     )