diff --git a/framework/test/Volo.Abp.Http.Client.IdentityModel.Web.Tests/Volo/Abp/Http/Client/IdentityModel/Web/TestTokenAuthHandler.cs b/framework/test/Volo.Abp.Http.Client.IdentityModel.Web.Tests/Volo/Abp/Http/Client/IdentityModel/Web/TestTokenAuthHandler.cs
index e554ef2f05..2bc41d239d 100644
--- a/framework/test/Volo.Abp.Http.Client.IdentityModel.Web.Tests/Volo/Abp/Http/Client/IdentityModel/Web/TestTokenAuthHandler.cs
+++ b/framework/test/Volo.Abp.Http.Client.IdentityModel.Web.Tests/Volo/Abp/Http/Client/IdentityModel/Web/TestTokenAuthHandler.cs
@@ -1,4 +1,3 @@
-using System.Collections.Generic;
 using System.Text.Encodings.Web;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Authentication;