diff --git a/src/TestFramework/MSTest.Core/Attributes/DynamicDataAttribute.cs b/src/TestFramework/MSTest.Core/Attributes/DynamicDataAttribute.cs
index 913d6eff5a..57d61ddaf5 100644
--- a/src/TestFramework/MSTest.Core/Attributes/DynamicDataAttribute.cs
+++ b/src/TestFramework/MSTest.Core/Attributes/DynamicDataAttribute.cs
@@ -1,15 +1,13 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
-namespace Microsoft.VisualStudio.TestTools.UnitTesting.Attributes
+namespace Microsoft.VisualStudio.TestTools.UnitTesting
 {
     using System;
     using System.Collections.Generic;
     using System.Globalization;
     using System.Reflection;
 
-    using Microsoft.VisualStudio.TestTools.UnitTesting;
-
     /// <summary>
     /// Enum to specify whether the data is stored as property or in method.
     /// </summary>
diff --git a/src/TestFramework/MSTest.Core/Interfaces/ITestDataSource.cs b/src/TestFramework/MSTest.Core/Interfaces/ITestDataSource.cs
index e9bc6cf17b..bfdc6677b1 100644
--- a/src/TestFramework/MSTest.Core/Interfaces/ITestDataSource.cs
+++ b/src/TestFramework/MSTest.Core/Interfaces/ITestDataSource.cs
@@ -3,9 +3,7 @@
 
 namespace Microsoft.VisualStudio.TestTools.UnitTesting
 {
-    using System;
     using System.Collections.Generic;
-    using System.Globalization;
     using System.Reflection;
 
     /// <summary>
diff --git a/test/E2ETests/TestAssets/FxExtensibilityTestProject/DynamicDataExMoreTests.cs b/test/E2ETests/TestAssets/FxExtensibilityTestProject/DynamicDataExMoreTests.cs
index c8825f64d5..25e815281c 100644
--- a/test/E2ETests/TestAssets/FxExtensibilityTestProject/DynamicDataExMoreTests.cs
+++ b/test/E2ETests/TestAssets/FxExtensibilityTestProject/DynamicDataExMoreTests.cs
@@ -4,7 +4,6 @@
 namespace FxExtensibilityTestProject
 {
     using Microsoft.VisualStudio.TestTools.UnitTesting;
-    using Microsoft.VisualStudio.TestTools.UnitTesting.Attributes;
 
     [TestClass]
     public class DynamicDataExMoreTests
diff --git a/test/E2ETests/TestAssets/FxExtensibilityTestProject/DynamicDataExTests.cs b/test/E2ETests/TestAssets/FxExtensibilityTestProject/DynamicDataExTests.cs
index b969dfac6d..21931ab38d 100644
--- a/test/E2ETests/TestAssets/FxExtensibilityTestProject/DynamicDataExTests.cs
+++ b/test/E2ETests/TestAssets/FxExtensibilityTestProject/DynamicDataExTests.cs
@@ -6,7 +6,6 @@ namespace FxExtensibilityTestProject
     using System.Collections.Generic;
 
     using Microsoft.VisualStudio.TestTools.UnitTesting;
-    using Microsoft.VisualStudio.TestTools.UnitTesting.Attributes;
 
     [TestClass]
     public class DynamicDataExTests
diff --git a/test/E2ETests/TestAssets/FxExtensibilityTestProject/TestDataSourceExTests.cs b/test/E2ETests/TestAssets/FxExtensibilityTestProject/TestDataSourceExTests.cs
index 38c9ccb862..022a471851 100644
--- a/test/E2ETests/TestAssets/FxExtensibilityTestProject/TestDataSourceExTests.cs
+++ b/test/E2ETests/TestAssets/FxExtensibilityTestProject/TestDataSourceExTests.cs
@@ -7,8 +7,6 @@ namespace FxExtensibilityTestProject
     using System.Globalization;
     using System.Reflection;
 
-    using Microsoft.VisualStudio.TestTools.UnitTesting.Attributes;
-
     [TestClass]
     public class TestDataSourceExTests
     {
diff --git a/test/UnitTests/MSTest.Core.Unit.Tests/Attributes/DynamicDataAttributeTests.cs b/test/UnitTests/MSTest.Core.Unit.Tests/Attributes/DynamicDataAttributeTests.cs
index 5ee060f04f..2ae30115f5 100644
--- a/test/UnitTests/MSTest.Core.Unit.Tests/Attributes/DynamicDataAttributeTests.cs
+++ b/test/UnitTests/MSTest.Core.Unit.Tests/Attributes/DynamicDataAttributeTests.cs
@@ -12,7 +12,6 @@ namespace Microsoft.VisualStudio.TestPlatform.TestFramework.UnitTests.Attributes
     using System.Reflection;
 
     using FrameworkV2::Microsoft.VisualStudio.TestTools.UnitTesting;
-    using FrameworkV2::Microsoft.VisualStudio.TestTools.UnitTesting.Attributes;
 
     using MSTestAdapter.TestUtilities;