diff --git a/Examples/PaymentAgreement/PaymentAgreement.csproj b/Examples/PaymentAgreement/PaymentAgreement.csproj
index df8215f..50a0f3d 100644
--- a/Examples/PaymentAgreement/PaymentAgreement.csproj
+++ b/Examples/PaymentAgreement/PaymentAgreement.csproj
@@ -11,7 +11,7 @@
     <PackageReference Include="Haru.Net" Version="1.0.11" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.2.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="2.2.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
   </ItemGroup>
 
   <ItemGroup>