diff --git a/code/app/task/crawler/zw/Scheduler.php b/code/app/task/crawler/zw/Scheduler.php
index 93370e8..27395b7 100644
--- a/code/app/task/crawler/zw/Scheduler.php
+++ b/code/app/task/crawler/zw/Scheduler.php
@@ -18,7 +18,7 @@ class Scheduler
 
     protected $intStartNSourceId = 1;
 
-    protected $intEndNSourceId = 1000;
+    protected $intEndNSourceId = 500000;
 
     /**
      * Undocumented variable