diff --git a/src/Microsoft.Android.Sdk.Analysis/Tests/Microsoft.Android.Sdk.Analysis.Tests.csproj b/src/Microsoft.Android.Sdk.Analysis/Tests/Microsoft.Android.Sdk.Analysis.Tests.csproj
index 51fa026fe1e..a3a27c56b09 100644
--- a/src/Microsoft.Android.Sdk.Analysis/Tests/Microsoft.Android.Sdk.Analysis.Tests.csproj
+++ b/src/Microsoft.Android.Sdk.Analysis/Tests/Microsoft.Android.Sdk.Analysis.Tests.csproj
@@ -19,6 +19,9 @@
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Microsoft.Android.Sdk.Analysis.csproj" />
+    <None Include="$(MSBuildThisFileDirectory)..\..\..\NuGet.config" Link="NuGet.config">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
   </ItemGroup>
   <Import Project="..\..\..\build-tools\scripts\NUnitReferences.projitems" />
   <ItemGroup>
diff --git a/src/Microsoft.Android.Sdk.Analysis/Tests/Verifiers/CSharpAnalyzerVerifier`1+Test.cs b/src/Microsoft.Android.Sdk.Analysis/Tests/Verifiers/CSharpAnalyzerVerifier`1+Test.cs
index 4a82bed3d48..ca37d954819 100644
--- a/src/Microsoft.Android.Sdk.Analysis/Tests/Verifiers/CSharpAnalyzerVerifier`1+Test.cs
+++ b/src/Microsoft.Android.Sdk.Analysis/Tests/Verifiers/CSharpAnalyzerVerifier`1+Test.cs
@@ -16,6 +16,8 @@ public class Test : CSharpAnalyzerTest<TAnalyzer, DefaultVerifier>
 		public List<DiagnosticAnalyzer> Analyzers => analyzers;
 		public Test ()
 		{
+			ReferenceAssemblies = CSharpVerifierHelper.DefaultReferenceAssemblies;
+
 			SolutionTransforms.Add ((solution, projectId) => {
 				var project = solution.GetProject (projectId);
 				var compilationOptions = project.CompilationOptions;
diff --git a/src/Microsoft.Android.Sdk.Analysis/Tests/Verifiers/CSharpCodeFixVerifier`2+Test.cs b/src/Microsoft.Android.Sdk.Analysis/Tests/Verifiers/CSharpCodeFixVerifier`2+Test.cs
index 310409b7090..141f5934b28 100644
--- a/src/Microsoft.Android.Sdk.Analysis/Tests/Verifiers/CSharpCodeFixVerifier`2+Test.cs
+++ b/src/Microsoft.Android.Sdk.Analysis/Tests/Verifiers/CSharpCodeFixVerifier`2+Test.cs
@@ -11,6 +11,8 @@ public class Test : CSharpCodeFixTest<TAnalyzer, TCodeFix, DefaultVerifier>
 	{
 		public Test ()
 		{
+			ReferenceAssemblies = CSharpVerifierHelper.DefaultReferenceAssemblies;
+
 			SolutionTransforms.Add ((solution, projectId) => {
 				var compilationOptions = solution.GetProject (projectId).CompilationOptions;
 				compilationOptions = compilationOptions.WithSpecificDiagnosticOptions (
@@ -22,4 +24,3 @@ public Test ()
 		}
 	}
 }
-
diff --git a/src/Microsoft.Android.Sdk.Analysis/Tests/Verifiers/CSharpCodeRefactoringVerifier`1+Test.cs b/src/Microsoft.Android.Sdk.Analysis/Tests/Verifiers/CSharpCodeRefactoringVerifier`1+Test.cs
index 7beb164e48f..5e1db64cb44 100644
--- a/src/Microsoft.Android.Sdk.Analysis/Tests/Verifiers/CSharpCodeRefactoringVerifier`1+Test.cs
+++ b/src/Microsoft.Android.Sdk.Analysis/Tests/Verifiers/CSharpCodeRefactoringVerifier`1+Test.cs
@@ -8,6 +8,8 @@ public class Test : CSharpCodeRefactoringTest<TCodeRefactoring, DefaultVerifier>
 	{
 		public Test ()
 		{
+			ReferenceAssemblies = CSharpVerifierHelper.DefaultReferenceAssemblies;
+
 			SolutionTransforms.Add ((solution, projectId) => {
 				var compilationOptions = solution.GetProject (projectId).CompilationOptions;
 				compilationOptions = compilationOptions.WithSpecificDiagnosticOptions (
diff --git a/src/Microsoft.Android.Sdk.Analysis/Tests/Verifiers/CSharpVerifierHelper.cs b/src/Microsoft.Android.Sdk.Analysis/Tests/Verifiers/CSharpVerifierHelper.cs
index bdeb56f1724..3a2b1eae3ac 100644
--- a/src/Microsoft.Android.Sdk.Analysis/Tests/Verifiers/CSharpVerifierHelper.cs
+++ b/src/Microsoft.Android.Sdk.Analysis/Tests/Verifiers/CSharpVerifierHelper.cs
@@ -1,10 +1,15 @@
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.CSharp;
+using Microsoft.CodeAnalysis.Testing;
 using System;
 using System.Collections.Immutable;
+using System.IO;
 
 internal static class CSharpVerifierHelper
 {
+	internal static ReferenceAssemblies DefaultReferenceAssemblies { get; } =
+		ReferenceAssemblies.Default.WithNuGetConfigFilePath (Path.Combine (AppContext.BaseDirectory, "NuGet.config"));
+
 	/// <summary>
 	/// By default, the compiler reports diagnostics for nullable reference types at
 	/// <see cref="DiagnosticSeverity.Warning"/>, and the analyzer test framework defaults to only validating