diff --git a/conductor/commands/cloud_formation.py b/conductor/commands/cloud_formation.py
index 9a6d3d6..23cddab 100644
--- a/conductor/commands/cloud_formation.py
+++ b/conductor/commands/cloud_formation.py
@@ -101,7 +101,7 @@ class HeatExecutor(CommandBase):
 
         for t in self._update_pending_list:
             template = conductor.helpers.merge_dicts(
-                template, t['template'], max_levels=2)
+                template, t['template'])
             arguments = conductor.helpers.merge_dicts(
                 arguments, t['arguments'], max_levels=1)