diff --git a/test/MediatR.Tests/MicrosoftExtensionsDI/AssemblyResolutionTests.cs b/test/MediatR.Tests/MicrosoftExtensionsDI/AssemblyResolutionTests.cs
index a0b131e5..01fda191 100644
--- a/test/MediatR.Tests/MicrosoftExtensionsDI/AssemblyResolutionTests.cs
+++ b/test/MediatR.Tests/MicrosoftExtensionsDI/AssemblyResolutionTests.cs
@@ -18,7 +18,6 @@ public AssemblyResolutionTests()
         services.AddMediatR(cfg =>
         {
             cfg.RegisterServicesFromAssembly(typeof(Ping).Assembly);
-            cfg.RegisterGenericHandlers = true;
         });
         _provider = services.BuildServiceProvider();
     }
diff --git a/test/MediatR.Tests/SendTests.cs b/test/MediatR.Tests/SendTests.cs
index 4763fe67..d67c125a 100644
--- a/test/MediatR.Tests/SendTests.cs
+++ b/test/MediatR.Tests/SendTests.cs
@@ -21,7 +21,6 @@ public SendTests()
         services.AddMediatR(cfg =>
         {
             cfg.RegisterServicesFromAssemblies(typeof(Ping).Assembly);
-            cfg.RegisterGenericHandlers = true;
         });
         services.AddSingleton(_dependency);
         _serviceProvider = services.BuildServiceProvider();