diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.NewtonsoftJson/Volo.Abp.AspNetCore.Mvc.NewtonsoftJson.csproj b/framework/src/Volo.Abp.AspNetCore.Mvc.NewtonsoftJson/Volo.Abp.AspNetCore.Mvc.NewtonsoftJson.csproj
index 026fb2f4d4..bd0d7c063f 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.NewtonsoftJson/Volo.Abp.AspNetCore.Mvc.NewtonsoftJson.csproj
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.NewtonsoftJson/Volo.Abp.AspNetCore.Mvc.NewtonsoftJson.csproj
@@ -5,6 +5,8 @@
 
     <PropertyGroup>
         <TargetFramework>net7.0</TargetFramework>
+        <Nullable>enable</Nullable>
+        <WarningsAsErrors>Nullable</WarningsAsErrors>
         <AddRazorSupportForMvc>true</AddRazorSupportForMvc>
         <AssemblyName>Volo.Abp.AspNetCore.Mvc.NewtonsoftJson</AssemblyName>
         <PackageId>Volo.Abp.AspNetCore.Mvc.NewtonsoftJson</PackageId>