diff --git a/tests/system-test/7-tmq/tmqConsFromTsdb1.py b/tests/system-test/7-tmq/tmqConsFromTsdb1.py
index af06c774d6adbf8fdf3ce2db95239d9c62858289..a183eda1c7f05a0116a7d490542ea18ed6de243f 100644
--- a/tests/system-test/7-tmq/tmqConsFromTsdb1.py
+++ b/tests/system-test/7-tmq/tmqConsFromTsdb1.py
@@ -85,7 +85,7 @@ class TDTestCase:
                     'rowsPerTbl': 10000,
                     'batchNum':   10,
                     'startTs':    1640966400000,  # 2022-01-01 00:00:00.000
-                    'pollDelay':  10,
+                    'pollDelay':  15,
                     'showMsg':    1,
                     'showRow':    1,
                     'snapshot':   1}