diff --git a/dev/MRTCore/mrt/Microsoft.Windows.ApplicationModel.Resources/unittests/MrtCoreManagedTest.csproj b/dev/MRTCore/mrt/Microsoft.Windows.ApplicationModel.Resources/unittests/MrtCoreManagedTest.csproj
index b9efbd3355..5a93660261 100644
--- a/dev/MRTCore/mrt/Microsoft.Windows.ApplicationModel.Resources/unittests/MrtCoreManagedTest.csproj
+++ b/dev/MRTCore/mrt/Microsoft.Windows.ApplicationModel.Resources/unittests/MrtCoreManagedTest.csproj
@@ -155,6 +155,9 @@
     <PackageReference Include="MSTest.TestFramework">
       <Version>1.4.0</Version>
     </PackageReference>
+    <PackageReference Include="Newtonsoft.Json">
+      <Version>13.0.1</Version>
+    </PackageReference>
   </ItemGroup>
   <ItemGroup>
     <None Include="MrtCoreManagedTests.runsettings">
@@ -194,4 +197,4 @@
   <Target Name="AfterBuild">
   </Target>
   -->
-</Project>
+</Project>
\ No newline at end of file