diff --git a/modules/setting-management/src/Volo.Abp.SettingManagement.Web/Pages/SettingManagement/Components/TimeZoneSettingGroup/Default.cshtml b/modules/setting-management/src/Volo.Abp.SettingManagement.Web/Pages/SettingManagement/Components/TimeZoneSettingGroup/Default.cshtml
index 56cf34631d..99469b61a7 100644
--- a/modules/setting-management/src/Volo.Abp.SettingManagement.Web/Pages/SettingManagement/Components/TimeZoneSettingGroup/Default.cshtml
+++ b/modules/setting-management/src/Volo.Abp.SettingManagement.Web/Pages/SettingManagement/Components/TimeZoneSettingGroup/Default.cshtml
@@ -1,9 +1,4 @@
 @using Microsoft.AspNetCore.Mvc.Localization
-@using Microsoft.AspNetCore.Mvc.TagHelpers
-@using Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Button
-@using Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Form
-@using Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Grid
-@using Volo.Abp.AspNetCore.Mvc.UI.Bundling.TagHelpers
 @using Volo.Abp.SettingManagement.Localization
 @inject IHtmlLocalizer<AbpSettingManagementResource> L
 @model Volo.Abp.SettingManagement.Web.Pages.SettingManagement.Components.TimeZoneSettingGroup.TimeZoneSettingGroupViewComponent.UpdateTimezoneSettingsViewModel