diff --git a/regression-test/pipeline/p0/conf/fe.conf b/regression-test/pipeline/p0/conf/fe.conf
index 3233d67dd5..80fd1d84af 100644
--- a/regression-test/pipeline/p0/conf/fe.conf
+++ b/regression-test/pipeline/p0/conf/fe.conf
@@ -111,6 +111,7 @@ enable_job_schedule_second_for_test = true
 enable_workload_group = true
 publish_topic_info_interval_ms = 1000
 workload_sched_policy_interval_ms = 1000
+workload_group_max_num = 30
 
 master_sync_policy = WRITE_NO_SYNC
 replica_sync_policy = WRITE_NO_SYNC