diff --git a/samples/Firebase/Auth/AuthSampleLegacy/AuthSampleLegacy.Nuget.Legacy.csproj b/samples/Firebase/Auth/AuthSampleLegacy/AuthSampleLegacy.Nuget.Legacy.csproj
index e8ab436ed..4a7dc40af 100644
--- a/samples/Firebase/Auth/AuthSampleLegacy/AuthSampleLegacy.Nuget.Legacy.csproj
+++ b/samples/Firebase/Auth/AuthSampleLegacy/AuthSampleLegacy.Nuget.Legacy.csproj
@@ -198,7 +198,7 @@
   <Import Project="$(MSBuildExtensionsPath)\Xamarin\iOS\Xamarin.iOS.CSharp.targets" />
   <ItemGroup>
     <PackageReference Include="Xamarin.Build.Download" Version="0.11.1" />
-    <PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="Xamarin.Facebook.CoreKit.iOS" Version="12.2.0.1" />
     <PackageReference Include="Xamarin.Facebook.LoginKit.iOS" Version="12.2.0.1" />
     <PackageReference Include="Xamarin.Firebase.iOS.Auth" Version="8.10.0.1" />