diff --git a/test/SuperSocket.Tests/TestClassBase.cs b/test/SuperSocket.Tests/TestClassBase.cs
index eaf9c24e4..7f3d93085 100644
--- a/test/SuperSocket.Tests/TestClassBase.cs
+++ b/test/SuperSocket.Tests/TestClassBase.cs
@@ -70,7 +70,7 @@ protected SuperSocketHostBuilder<TPackageInfo> CreateSocketServerBuilder<TPackag
 
         protected T CreateObject<T>(Type type)
         {
-            return (T)ActivatorUtilities.CreateFactory(type, new Type[0]).Invoke(null, null);
+            return (T)Activator.CreateInstance(type);
         }
 
         protected Socket CreateClient(IHostConfigurator hostConfigurator)