diff --git a/src/DebugUtils/EcsDebug.cs b/src/DebugUtils/EcsDebug.cs
index f40fd66..2664a90 100644
--- a/src/DebugUtils/EcsDebug.cs
+++ b/src/DebugUtils/EcsDebug.cs
@@ -1,7 +1,6 @@
 using DCFApixels.DragonECS.Internal;
 using System;
 using System.Collections;
-using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;