diff --git a/neutron_lib/api/converters.py b/neutron_lib/api/converters.py
index 9bb6f2422..600e64a43 100644
--- a/neutron_lib/api/converters.py
+++ b/neutron_lib/api/converters.py
@@ -128,7 +128,7 @@ def convert_kvp_list_to_dict(kvp_list):
         key, value = convert_kvp_str_to_list(kvp_str)
         kvp_map.setdefault(key, set())
         kvp_map[key].add(value)
-    return dict((x, list(y)) for x, y in six.iteritems(kvp_map))
+    return dict((x, list(y)) for x, y in kvp_map.items())
 
 
 def convert_none_to_empty_list(value):
diff --git a/neutron_lib/api/validators.py b/neutron_lib/api/validators.py
index 442eebcdf..b8f5c6b55 100644
--- a/neutron_lib/api/validators.py
+++ b/neutron_lib/api/validators.py
@@ -700,7 +700,7 @@ def _validate_dict_item(key, key_validator, data):
     # TODO(salv-orlando): Structure of dict attributes should be improved
     # to avoid iterating over items
     val_func = val_params = None
-    for (k, v) in six.iteritems(key_validator):
+    for (k, v) in key_validator.items():
         if k.startswith('type:'):
             # ask forgiveness, not permission
             try:
@@ -735,7 +735,7 @@ def validate_dict(data, key_specs=None):
         return
 
     # Check whether all required keys are present
-    required_keys = [key for key, spec in six.iteritems(key_specs)
+    required_keys = [key for key, spec in key_specs.items()
                      if spec.get('required')]
 
     if required_keys:
@@ -752,7 +752,7 @@ def validate_dict(data, key_specs=None):
 
     # Perform validation and conversion of all values
     # according to the specifications.
-    for key, key_validator in [(k, v) for k, v in six.iteritems(key_specs)
+    for key, key_validator in [(k, v) for k, v in key_specs.items()
                                if k in data]:
         msg = _validate_dict_item(key, key_validator, data)
         if msg:
diff --git a/neutron_lib/tests/_base.py b/neutron_lib/tests/_base.py
index 56b549e53..3662269ce 100644
--- a/neutron_lib/tests/_base.py
+++ b/neutron_lib/tests/_base.py
@@ -24,7 +24,6 @@ from oslo_config import cfg
 from oslo_db import options as db_options
 from oslo_utils import strutils
 import pbr.version
-import six
 import testtools
 
 from neutron_lib._i18n import _
@@ -222,7 +221,7 @@ class BaseTestCase(testtools.TestCase):
         self.assertEqual(expect_val, actual_val)
 
     def sort_dict_lists(self, dic):
-        for key, value in six.iteritems(dic):
+        for key, value in dic.items():
             if isinstance(value, list):
                 dic[key] = sorted(value)
             elif isinstance(value, dict):
diff --git a/neutron_lib/utils/helpers.py b/neutron_lib/utils/helpers.py
index d84644bce..bbd655786 100644
--- a/neutron_lib/utils/helpers.py
+++ b/neutron_lib/utils/helpers.py
@@ -92,7 +92,7 @@ def dict2str(dic):
     each item in dic.
     """
     return ','.join("%s=%s" % (key, val)
-                    for key, val in sorted(six.iteritems(dic)))
+                    for key, val in sorted(dic.items()))
 
 
 def str2dict(string):