diff --git a/GatewayWorker/Applications/githubT/start_sync.php b/GatewayWorker/Applications/githubT/start_sync.php
index f46a3a1..9543ba1 100644
--- a/GatewayWorker/Applications/githubT/start_sync.php
+++ b/GatewayWorker/Applications/githubT/start_sync.php
@@ -42,7 +42,7 @@ $task_worker->onMessage = function ($connection, $task_data) use ($webDir,$datat
                 break;
         }
     }
-    if (preg_match("/%|\"|\.\.|\\\|\?|&|reboot|rm |mv |shutdown|<|>|sh |;|'/",$dataArr['url'])
+    if (preg_match("/%|\"|\.\.|\\\|\?|\||`|&|reboot|rm |mv |shutdown|<|>|sh |;|'/",$dataArr['url'])
         ||
         (
             !preg_match("/^((https|http):\/\/)?([\w\.\s\S\/\-\_^]+?)\.(tar\.gz|gz|tgz|tar\.bz2|bz2|msi|tar|zip|tar\.xz|tar\.z|rpm|deb|exe|apk|dmg|7z|rar)$/iu",$dataArr['url'],$ext)