diff --git a/src/Worker/AzureManaged/DurableTaskSchedulerWorkerOptions.cs b/src/Worker/AzureManaged/DurableTaskSchedulerWorkerOptions.cs
index a7f79510..df704207 100644
--- a/src/Worker/AzureManaged/DurableTaskSchedulerWorkerOptions.cs
+++ b/src/Worker/AzureManaged/DurableTaskSchedulerWorkerOptions.cs
@@ -79,8 +79,8 @@ internal static DurableTaskSchedulerWorkerOptions FromConnectionString(
     /// <returns>A configured <see cref="GrpcChannel"/> instance that can be used to make gRPC calls.</returns>
     public GrpcChannel CreateChannel()
     {
-        Check.NotNullOrEmpty(this.EndpointAddress, nameof(this.EndpointAddress));
-        Check.NotNullOrEmpty(this.TaskHubName, nameof(this.TaskHubName));
+        Verify.NotNull(this.EndpointAddress, nameof(this.EndpointAddress));
+        Verify.NotNull(this.TaskHubName, nameof(this.TaskHubName));
         string taskHubName = this.TaskHubName;
         string endpoint = !this.EndpointAddress.Contains("://")
             ? $"https://{this.EndpointAddress}"
diff --git a/test/Client/AzureManaged.Tests/DurableTaskSchedulerClientExtensionsTests.cs b/test/Client/AzureManaged.Tests/DurableTaskSchedulerClientExtensionsTests.cs
index e05e352e..f9131c34 100644
--- a/test/Client/AzureManaged.Tests/DurableTaskSchedulerClientExtensionsTests.cs
+++ b/test/Client/AzureManaged.Tests/DurableTaskSchedulerClientExtensionsTests.cs
@@ -1,6 +1,7 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
+using System.ComponentModel.DataAnnotations;
 using Azure.Core;
 using Azure.Identity;
 using FluentAssertions;
@@ -10,7 +11,6 @@
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Options;
 using Moq;
-using System.ComponentModel.DataAnnotations;
 using Xunit;
 
 namespace Microsoft.DurableTask.Client.AzureManaged.Tests;