diff --git a/DIDemo/DIDemo.csproj b/DIDemo/DIDemo.csproj
index 46333f8..72a343c 100644
--- a/DIDemo/DIDemo.csproj
+++ b/DIDemo/DIDemo.csproj
@@ -13,7 +13,7 @@
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="10.0.12" />
     <PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="10.0.10" />
     <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="9.0.12" />
-    <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="9.0.20" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="9.0.21" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\DIDemoServices\DIDemoServices.csproj" />