diff --git a/SabreTools.FileTypes/Compress/SevenZip/SevenZip.cs b/SabreTools.FileTypes/Compress/SevenZip/SevenZip.cs
index ceff7415..e5f9e6be 100644
--- a/SabreTools.FileTypes/Compress/SevenZip/SevenZip.cs
+++ b/SabreTools.FileTypes/Compress/SevenZip/SevenZip.cs
@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
-using System.Security.Policy;
 using System.Text;
 using Compress.SevenZip.Compress.ZSTD;
 using Compress.SevenZip.Structure;