diff --git a/DllImportGenerator/DllImportGenerator.UnitTests/DllImportGenerator.UnitTests.csproj b/DllImportGenerator/DllImportGenerator.UnitTests/DllImportGenerator.UnitTests.csproj
index 7fd03c53f8c1..1ebce78dadc5 100644
--- a/DllImportGenerator/DllImportGenerator.UnitTests/DllImportGenerator.UnitTests.csproj
+++ b/DllImportGenerator/DllImportGenerator.UnitTests/DllImportGenerator.UnitTests.csproj
@@ -26,4 +26,8 @@
     <ProjectReference Include="..\Ancillary.Interop\Ancillary.Interop.csproj" />
     <ProjectReference Include="..\DllImportGenerator\DllImportGenerator.csproj" />
   </ItemGroup>
+
+  <ItemGroup>
+	<None Include="$(RepoRoot)/NuGet.config" Link="NuGet.config" CopyToOutputDirectory="PreserveNewest" />
+  </ItemGroup>
 </Project>
diff --git a/DllImportGenerator/DllImportGenerator.UnitTests/TestUtils.cs b/DllImportGenerator/DllImportGenerator.UnitTests/TestUtils.cs
index 995c2f0450f1..fd49c82ccf91 100644
--- a/DllImportGenerator/DllImportGenerator.UnitTests/TestUtils.cs
+++ b/DllImportGenerator/DllImportGenerator.UnitTests/TestUtils.cs
@@ -2,6 +2,7 @@
 using Microsoft.CodeAnalysis.CSharp;
 using Microsoft.CodeAnalysis.Diagnostics;
 using Microsoft.CodeAnalysis.Testing;
+using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
 using System.IO;
@@ -96,7 +97,8 @@ public static (ReferenceAssemblies, MetadataReference) GetReferenceAssemblies()
                     new PackageIdentity(
                         "Microsoft.NETCore.App.Ref",
                         "6.0.0-preview.6.21317.4"),
-                    Path.Combine("ref", "net6.0"));
+                    Path.Combine("ref", "net6.0"))
+                .WithNuGetConfigFilePath(Path.Combine(Path.GetDirectoryName(typeof(TestUtils).Assembly.Location)!, "NuGet.config"));
 
             // Include the assembly containing the new attribute and all of its references.
             // [TODO] Remove once the attribute has been added to the BCL
diff --git a/eng/Versions.props b/eng/Versions.props
index cd3c8ca95a31..fc425df2da3a 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -20,7 +20,7 @@
     <XUnitRunnerVisualStudioVersion>2.4.3</XUnitRunnerVisualStudioVersion>
     <!-- Roslyn dependencies -->
     <CompilerPlatformVersion>3.10.0-3.21229.26</CompilerPlatformVersion>
-    <CompilerPlatformTestingVersion>1.0.1-beta1.20478.1</CompilerPlatformTestingVersion>
+    <CompilerPlatformTestingVersion>1.1.0</CompilerPlatformTestingVersion>
     <MicrosoftCodeAnalysisAnalyzersVersion>3.3.3-beta1.21268.3</MicrosoftCodeAnalysisAnalyzersVersion>
     <!-- Package dependencies -->
     <SystemCommandLineVersion>2.0.0-beta1.21118.1</SystemCommandLineVersion>