diff --git a/connect-examples/v2/v2_deprecated/csharp_checkout/csharp_checkout.csproj b/connect-examples/v2/v2_deprecated/csharp_checkout/csharp_checkout.csproj
index 779bea04..7bc4da07 100644
--- a/connect-examples/v2/v2_deprecated/csharp_checkout/csharp_checkout.csproj
+++ b/connect-examples/v2/v2_deprecated/csharp_checkout/csharp_checkout.csproj
@@ -3,7 +3,7 @@
     <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="RestSharp" Version="106.12.0" />
     <PackageReference Include="Square" Version="22.0.0" />
   </ItemGroup>