diff --git a/src/NUnitFramework/framework/Diagnostics/ProgressTraceListener.cs b/src/NUnitFramework/framework/Diagnostics/ProgressTraceListener.cs
index 954fbfd807..1f8f2d0d89 100644
--- a/src/NUnitFramework/framework/Diagnostics/ProgressTraceListener.cs
+++ b/src/NUnitFramework/framework/Diagnostics/ProgressTraceListener.cs
@@ -2,9 +2,6 @@
 
 using System;
 using System.Diagnostics;
-#if !NET6_0_OR_GREATER
-using System.Security.Permissions;
-#endif
 
 namespace NUnit.Framework.Diagnostics
 {