diff --git a/GFramework.Cqrs/GlobalUsings.cs b/GFramework.Cqrs/GlobalUsings.cs
index b60938a5..3085d1e1 100644
--- a/GFramework.Cqrs/GlobalUsings.cs
+++ b/GFramework.Cqrs/GlobalUsings.cs
@@ -6,3 +6,4 @@ global using System.Threading.Tasks;
 global using System.Reflection;
 global using Microsoft.Extensions.DependencyInjection;
 global using System.Diagnostics;
+global using System.Collections.Concurrent;