diff --git a/modules/identityserver/src/Volo.Abp.IdentityServer.Domain.Shared/Volo/Abp/IdentityServer/Clients/ClientPostLogoutRedirectUriConsts.cs b/modules/identityserver/src/Volo.Abp.IdentityServer.Domain.Shared/Volo/Abp/IdentityServer/Clients/ClientPostLogoutRedirectUriConsts.cs
index 8fe55ba018..1200e47cfa 100644
--- a/modules/identityserver/src/Volo.Abp.IdentityServer.Domain.Shared/Volo/Abp/IdentityServer/Clients/ClientPostLogoutRedirectUriConsts.cs
+++ b/modules/identityserver/src/Volo.Abp.IdentityServer.Domain.Shared/Volo/Abp/IdentityServer/Clients/ClientPostLogoutRedirectUriConsts.cs
@@ -2,6 +2,6 @@
 {
     public class ClientPostLogoutRedirectUriConsts
     {
-        public const int PostLogoutRedirectUriMaxLength = 2000;
+        public const int PostLogoutRedirectUriMaxLength = 200;
     }
 }
\ No newline at end of file