diff --git a/v2rayN/ServiceLib/Handler/Fmt/HtmlPageFmt.cs b/v2rayN/ServiceLib/Handler/Fmt/HtmlPageFmt.cs
index 38d139d4..d7c014ae 100644
--- a/v2rayN/ServiceLib/Handler/Fmt/HtmlPageFmt.cs
+++ b/v2rayN/ServiceLib/Handler/Fmt/HtmlPageFmt.cs
@@ -1,5 +1,3 @@
-using SkiaSharp;
-
namespace ServiceLib.Handler.Fmt;
public class HtmlPageFmt : BaseFmt
diff --git a/v2rayN/ServiceLib/Services/DownloadService.cs b/v2rayN/ServiceLib/Services/DownloadService.cs
index fe17d523..f37c8939 100644
--- a/v2rayN/ServiceLib/Services/DownloadService.cs
+++ b/v2rayN/ServiceLib/Services/DownloadService.cs
@@ -1,4 +1,3 @@
-using System.Diagnostics;
using System.Net;
using System.Net.Http.Headers;
using System.Net.Sockets;
diff --git a/v2rayN/v2rayN/Manager/WindowsManager.cs b/v2rayN/v2rayN/Manager/WindowsManager.cs
index 8e8b116d..db5818f9 100644
--- a/v2rayN/v2rayN/Manager/WindowsManager.cs
+++ b/v2rayN/v2rayN/Manager/WindowsManager.cs
@@ -1,7 +1,6 @@
using System.Drawing;
using System.IO;
using System.Windows.Media.Imaging;
-using v2rayN.Manager;
namespace v2rayN.Manager;