diff --git a/aspnet-core/modules/BasicManagement/src/Lion.AbpPro.BasicManagement.Application/Users/UserAppService.cs b/aspnet-core/modules/BasicManagement/src/Lion.AbpPro.BasicManagement.Application/Users/UserAppService.cs
index f499c0bef..b19a2d331 100644
--- a/aspnet-core/modules/BasicManagement/src/Lion.AbpPro.BasicManagement.Application/Users/UserAppService.cs
+++ b/aspnet-core/modules/BasicManagement/src/Lion.AbpPro.BasicManagement.Application/Users/UserAppService.cs
@@ -81,12 +81,7 @@ public async Task<IdentityUserDto> CreateAsync(IdentityUserCreateDto input)
         {
             // abp 5.0 之后新增字段,是否运行用户登录，默认设置为true
             input.IsActive = true;
-            using (var uow = UnitOfWorkManager.Begin(new AbpUnitOfWorkOptions() { IsTransactional = true }, true))
-            {
-                await _identityUserAppService.CreateAsync(input);
-                await uow.CompleteAsync();
-            }
-            return null;
+            return await _identityUserAppService.CreateAsync(input);
         }
 
         /// <summary>
@@ -96,12 +91,7 @@ public async Task<IdentityUserDto> CreateAsync(IdentityUserCreateDto input)
         public virtual async Task<IdentityUserDto> UpdateAsync(UpdateUserInput input)
         {
             input.UserInfo.IsActive = true;
-            using (var uow = UnitOfWorkManager.Begin(new AbpUnitOfWorkOptions() { IsTransactional = true }, true))
-            {
-                await _identityUserAppService.UpdateAsync(input.UserId, input.UserInfo);
-            }
-
-            return null;
+            return await _identityUserAppService.UpdateAsync(input.UserId, input.UserInfo);
         }
 
         /// <summary>
diff --git a/aspnet-core/services/host/Lion.AbpPro.HttpApi.Host/AbpProHttpApiHostModule.cs b/aspnet-core/services/host/Lion.AbpPro.HttpApi.Host/AbpProHttpApiHostModule.cs
index 2f1b2eb18..ad27a4574 100644
--- a/aspnet-core/services/host/Lion.AbpPro.HttpApi.Host/AbpProHttpApiHostModule.cs
+++ b/aspnet-core/services/host/Lion.AbpPro.HttpApi.Host/AbpProHttpApiHostModule.cs
@@ -145,7 +145,7 @@ private void ConfigureJwtAuthentication(ServiceConfigurationContext context, ICo
                             ValidateIssuer = true,
                             ValidateAudience = true,
                             ValidateLifetime = true,
-                            //ClockSkew = TimeSpan.Zero,
+                            ClockSkew = TimeSpan.Zero,
                             ValidIssuer = configuration["Jwt:Issuer"],
                             ValidAudience = configuration["Jwt:Audience"],
                             IssuerSigningKey =