diff --git a/tencentcloud/resource_tc_clb_attachment_test.go b/tencentcloud/resource_tc_clb_attachment_test.go
index 4261e15013..b08b97f83a 100644
--- a/tencentcloud/resource_tc_clb_attachment_test.go
+++ b/tencentcloud/resource_tc_clb_attachment_test.go
@@ -12,7 +12,6 @@ import (
 )
 
 func TestAccTencentCloudClbAttachmentResource_tcp(t *testing.T) {
-	t.Parallel()
 	resource.Test(t, resource.TestCase{
 		PreCheck:     func() { testAccPreCheck(t) },
 		Providers:    testAccProviders,
@@ -51,7 +50,6 @@ func TestAccTencentCloudClbAttachmentResource_tcp(t *testing.T) {
 }
 
 func TestAccTencentCloudClbAttachmentResource_http(t *testing.T) {
-	t.Parallel()
 	resource.Test(t, resource.TestCase{
 		PreCheck:     func() { testAccPreCheck(t) },
 		Providers:    testAccProviders,