diff --git a/atreal_openads/utils.py b/atreal_openads/utils.py
index 59a10b3..95a7466 100644
--- a/atreal_openads/utils.py
+++ b/atreal_openads/utils.py
@@ -154,7 +154,7 @@ def trunc_str_values(value, limit, visited=None, truncate_text=u'…'):
             value = value[:limit] + truncate_text
         elif isinstance(value, (dict, list, tuple)):
             visited.append(value)
-            iterator = value.iteritems() if isinstance(value, dict) else enumerate(value)
+            iterator = value.items() if isinstance(value, dict) else enumerate(value)
             for _key, _value in iterator:
                 value[_key] = trunc_str_values(_value, limit, visited, truncate_text)
     return value