diff --git a/Samples/Sample.Server.WebAuthenticator/Sample.Server.WebAuthenticator.csproj b/Samples/Sample.Server.WebAuthenticator/Sample.Server.WebAuthenticator.csproj
index f6cfead3..c09e3ae0 100644
--- a/Samples/Sample.Server.WebAuthenticator/Sample.Server.WebAuthenticator.csproj
+++ b/Samples/Sample.Server.WebAuthenticator/Sample.Server.WebAuthenticator.csproj
@@ -6,6 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="AspNet.Security.OAuth.Apple" Version="3.1.8" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="Microsoft.AspNetCore.Authentication.Facebook" Version="3.1.2" />
     <PackageReference Include="Microsoft.AspNetCore.Authentication.Google" Version="3.1.2" />
     <PackageReference Include="Microsoft.AspNetCore.Authentication.MicrosoftAccount" Version="3.1.2" />
diff --git a/Tests/Tests.csproj b/Tests/Tests.csproj
index e6814b1d..b5fe3451 100644
--- a/Tests/Tests.csproj
+++ b/Tests/Tests.csproj
@@ -13,7 +13,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.2" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
   </ItemGroup>