diff --git a/dev/VSIX/Extension/Cpp/Dev16/WindowsAppSDK.Cpp.Extension.Dev16.csproj b/dev/VSIX/Extension/Cpp/Dev16/WindowsAppSDK.Cpp.Extension.Dev16.csproj
index 0fbd05743d..a51ae551a5 100644
--- a/dev/VSIX/Extension/Cpp/Dev16/WindowsAppSDK.Cpp.Extension.Dev16.csproj
+++ b/dev/VSIX/Extension/Cpp/Dev16/WindowsAppSDK.Cpp.Extension.Dev16.csproj
@@ -60,6 +60,7 @@
     <PackageReference Include="Microsoft.VisualStudio.SDK" Version="16.0.206" ExcludeAssets="runtime">
       <IncludeAssets>compile; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
     <PackageReference Include="Microsoft.VSSDK.BuildTools" Version="17.0.3177-preview3">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
diff --git a/dev/VSIX/Extension/Cs/Dev16/WindowsAppSDK.Cs.Extension.Dev16.csproj b/dev/VSIX/Extension/Cs/Dev16/WindowsAppSDK.Cs.Extension.Dev16.csproj
index 3c550db4ee..e39c4c7c7a 100644
--- a/dev/VSIX/Extension/Cs/Dev16/WindowsAppSDK.Cs.Extension.Dev16.csproj
+++ b/dev/VSIX/Extension/Cs/Dev16/WindowsAppSDK.Cs.Extension.Dev16.csproj
@@ -61,6 +61,7 @@
     <PackageReference Include="Microsoft.VisualStudio.SDK" Version="16.0.206" ExcludeAssets="runtime">
       <IncludeAssets>compile; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
     <PackageReference Include="Microsoft.VSSDK.BuildTools" Version="17.0.3177-preview3">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>