diff --git a/recipes-phosphor/settings/phosphor-settings-manager/merge_settings.py b/recipes-phosphor/settings/phosphor-settings-manager/merge_settings.py
index 01f5e35..d910da5 100755
--- a/recipes-phosphor/settings/phosphor-settings-manager/merge_settings.py
+++ b/recipes-phosphor/settings/phosphor-settings-manager/merge_settings.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """Loads a "target" YAML file and overwrites its values with values from
 "override" YAML files.
 
@@ -28,7 +28,7 @@
     """
     if not isinstance(source, dict):
         return source
-    for k, v in source.iteritems():
+    for k, v in source.items():
         if k in target and isinstance(target[k], dict):
             dict_merge(target[k], v)
         else: