diff --git a/tests/actions.go b/tests/actions.go
index cd0d90f49b..e9961f83b1 100644
--- a/tests/actions.go
+++ b/tests/actions.go
@@ -1087,7 +1087,7 @@ func (oa *operatorActions) tidbMembersReadyFn(tc *v1alpha1.TidbCluster) (bool, e
 
 	if upgradePaused() {
 
-		time.Sleep(5 * time.Minute)
+		time.Sleep(30 * time.Second)
 
 		if !pauseCorrect(tidbSet) {
 			return false, fmt.Errorf("pause partition is not correct in upgrade phase [%s/%s] partition %d annotation %d",
diff --git a/tests/cmd/stability/main.go b/tests/cmd/stability/main.go
index aee2c4fc67..22c2aaeea0 100644
--- a/tests/cmd/stability/main.go
+++ b/tests/cmd/stability/main.go
@@ -214,6 +214,9 @@ func main() {
 	oa.CheckTidbClusterStatusOrDie(cluster1)
 	oa.CheckTidbClusterStatusOrDie(cluster2)
 
+	// after upgrade cluster, clean webhook
+	oa.CleanWebHookAndService(operatorCfg)
+
 	// cluster1: bad configuration change case
 	cluster1.TiDBPreStartScript = strconv.Quote("exit 1")
 	oa.UpgradeTidbClusterOrDie(cluster1)
@@ -242,9 +245,6 @@ func main() {
 	oa.UpgradeTidbClusterOrDie(cluster2)
 	oa.CheckTidbClusterStatusOrDie(cluster2)
 
-	// after upgrade cluster, clean webhook
-	oa.CleanWebHookAndService(operatorCfg)
-
 	// deploy and check cluster restore
 	oa.DeployTidbClusterOrDie(clusterRestoreTo)
 	oa.CheckTidbClusterStatusOrDie(clusterRestoreTo)