diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AspNetCoreApiDescriptionModelProvider.cs b/framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AspNetCoreApiDescriptionModelProvider.cs
index 2bd64a0897..681dc14d8f 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AspNetCoreApiDescriptionModelProvider.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AspNetCoreApiDescriptionModelProvider.cs
@@ -21,7 +21,6 @@ using Volo.Abp.DependencyInjection;
 using Volo.Abp.Http.Modeling;
 using Volo.Abp.Reflection;
 using Volo.Abp.Threading;
-using System.Collections.Concurrent;
 
 namespace Volo.Abp.AspNetCore.Mvc;