diff --git a/IRaCIS.Core.Application/Helper/OtherTool/WeComNotifier.cs b/IRaCIS.Core.Application/Helper/OtherTool/WeComNotifier.cs
index 71395135f..641b117b1 100644
--- a/IRaCIS.Core.Application/Helper/OtherTool/WeComNotifier.cs
+++ b/IRaCIS.Core.Application/Helper/OtherTool/WeComNotifier.cs
@@ -28,8 +28,8 @@ public static class WeComNotifier
 
             var stack = ex.StackTrace ?? "无堆栈信息";
             stack = stack.Replace("\n", "\n> "); // 每行变成引用，防止markdown断裂
-            if (stack.Length > 1000)
-                stack = stack.Substring(0, 1000) + "...(已截断)";
+            if (stack.Length > 1200)
+                stack = stack.Substring(0, 1200) + "...(已截断)";
 
             string atText = "";
             if (atUsers != null && atUsers.Any())