diff --git a/v2rayN/ServiceLib/Global.cs b/v2rayN/ServiceLib/Global.cs
index bf8dd7ab..7b518f91 100644
--- a/v2rayN/ServiceLib/Global.cs
+++ b/v2rayN/ServiceLib/Global.cs
@@ -141,9 +141,9 @@ public class Global
     public static readonly List<string> SpeedTestUrls =
     [
         @"https://cachefly.cachefly.net/50mb.test",
+        @"https://cachefly.cachefly.net/100mb.test",
         @"https://speed.cloudflare.com/__down?bytes=10000000",
         @"https://speed.cloudflare.com/__down?bytes=50000000",
-        @"https://speed.cloudflare.com/__down?bytes=100000000",
     ];
 
     public static readonly List<string> SpeedPingTestUrls =