diff --git a/backend/SystemUpdater/UpdateManagerDbus.py b/backend/SystemUpdater/UpdateManagerDbus.py
index b83c59f..f20e50c 100755
--- a/backend/SystemUpdater/UpdateManagerDbus.py
+++ b/backend/SystemUpdater/UpdateManagerDbus.py
@@ -73,7 +73,7 @@ class UpdateManagerDbusController(dbus.service.Object):
         self.UpdateDetectStatusChanged(10,_("Updating Source Template"))
         obj = self.bus.get_object('com.kylin.software.properties', '/com/kylin/software/properties')
         interface = dbus.Interface(obj, dbus_interface='com.kylin.software.properties.interface')
-        interface.updateSourceTemplate(timeout=1,reply_handler=self._update_important_reply,error_handler=self._update_important_error)
+        interface.updateSourceTemplate(timeout=20,reply_handler=self._update_important_reply,error_handler=self._update_important_error)
 
     def is_reboot_required(self):
         """If a reboot is required to get all changes into effect."""