diff --git a/tests/common/nebula_service.py b/tests/common/nebula_service.py
index 63b4fdb572bd74e62c80a94bc93024a54bbfe1fa..2e0e92de61b8b3dd913e4f69b4ef3a37c3cd34d4 100644
--- a/tests/common/nebula_service.py
+++ b/tests/common/nebula_service.py
@@ -60,7 +60,7 @@ class NebulaService(object):
         shutil.copy(self.build_dir + '/../resources/gflags.json', resources_dir)
 
     def _format_nebula_command(self, name, meta_port, ports, debug_log=True):
-        param_format = "--meta_server_addrs={} --port={} --ws_http_port={} --ws_h2_port={} --heartbeat_interval_secs=1"
+        param_format = "--meta_server_addrs={} --port={} --ws_http_port={} --ws_h2_port={} --heartbeat_interval_secs=1 --expired_time_factor=60"
         param = param_format.format("127.0.0.1:" + str(meta_port), ports[0],
                                     ports[1], ports[2])
         if name == 'graphd':