diff --git a/src/CSharp/EasyMicroservices.Cores.AspEntityFrameworkCoreApi/StartUpExtensions.cs b/src/CSharp/EasyMicroservices.Cores.AspEntityFrameworkCoreApi/StartUpExtensions.cs
index 1bce7ad..a568b69 100644
--- a/src/CSharp/EasyMicroservices.Cores.AspEntityFrameworkCoreApi/StartUpExtensions.cs
+++ b/src/CSharp/EasyMicroservices.Cores.AspEntityFrameworkCoreApi/StartUpExtensions.cs
@@ -87,8 +87,8 @@ public static IServiceCollection Builder<TContext>(this IServiceCollection servi
                 option.ExceptionHandler = AppAuthorizationMiddleware.ExceptionHandler;
             });
             services.AddScoped<Contents.GeneratedServices.ContentClient>(service => new Contents.GeneratedServices.ContentClient(GetContentAddress(service)?.Address, new HttpClient()));
-            services.AddSingleton<ContentLanguageHelper>();
-            services.AddSingleton<IContentResolver, InternalContentResolver>();
+            services.AddScoped<ContentLanguageHelper>();
+            services.AddScoped<IContentResolver, InternalContentResolver>();
             return services;
         }