diff --git a/pkg/ddl/backfilling_dist_scheduler_test.go b/pkg/ddl/backfilling_dist_scheduler_test.go
index 9abd0b755d..c46f53a908 100644
--- a/pkg/ddl/backfilling_dist_scheduler_test.go
+++ b/pkg/ddl/backfilling_dist_scheduler_test.go
@@ -293,7 +293,7 @@ func createAddIndexTask(t *testing.T,
 	useGlobalSort bool) (*proto.Task, *fakestorage.Server) {
 	var (
 		gcsHost = "127.0.0.1"
-		gcsPort = uint16(4443)
+		gcsPort = uint16(4447)
 		// for fake gcs server, we must use this endpoint format
 		// NOTE: must end with '/'
 		gcsEndpointFormat = "http://%s:%d/storage/v1/"
diff --git a/pkg/disttask/importinto/scheduler_testkit_test.go b/pkg/disttask/importinto/scheduler_testkit_test.go
index 88cf0b36ed..47225145e2 100644
--- a/pkg/disttask/importinto/scheduler_testkit_test.go
+++ b/pkg/disttask/importinto/scheduler_testkit_test.go
@@ -173,7 +173,7 @@ func TestSchedulerExtLocalSort(t *testing.T) {
 
 func TestSchedulerExtGlobalSort(t *testing.T) {
 	host := "127.0.0.1"
-	port := uint16(4443)
+	port := uint16(4448)
 	opt := fakestorage.Options{
 		Scheme:     "http",
 		Host:       host,