diff --git a/blazarclient/base.py b/blazarclient/base.py
index fc18ef3..2fc65ae 100644
--- a/blazarclient/base.py
+++ b/blazarclient/base.py
@@ -13,9 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import json
-
 from keystoneauth1 import adapter
+from oslo_serialization import jsonutils
 import requests
 
 from blazarclient import exception
@@ -89,13 +88,13 @@ class RequestManager(object):
 
         if 'body' in kwargs:
             kwargs['headers']['Content-Type'] = 'application/json'
-            kwargs['data'] = json.dumps(kwargs['body'])
+            kwargs['data'] = jsonutils.dump_as_bytes(kwargs['body'])
             del kwargs['body']
 
         resp = requests.request(method, self.blazar_url + url, **kwargs)
 
         try:
-            body = json.loads(resp.text)
+            body = jsonutils.loads(resp.text)
         except ValueError:
             body = None
 
diff --git a/blazarclient/command.py b/blazarclient/command.py
index 4aa92bd..e605130 100644
--- a/blazarclient/command.py
+++ b/blazarclient/command.py
@@ -134,7 +134,7 @@ class CreateCommand(BlazarCommand, show.ShowOne):
             print('Created a new %s:' % self.resource, file=self.app.stdout)
         else:
             data = {'': ''}
-        return zip(*sorted(data.items()))
+        return list(zip(*sorted(data.items())))
 
 
 class UpdateCommand(BlazarCommand):
@@ -291,4 +291,4 @@ class ShowCommand(BlazarCommand, show.ShowOne):
         resource_manager = getattr(blazar_client, self.resource)
         data = resource_manager.get(res_id)
         self.format_output_data(data)
-        return zip(*sorted(data.items()))
+        return list(zip(*sorted(data.items())))
diff --git a/blazarclient/shell.py b/blazarclient/shell.py
index 69138a8..5cd7eed 100644
--- a/blazarclient/shell.py
+++ b/blazarclient/shell.py
@@ -511,7 +511,7 @@ class BlazarShell(app.App):
 
 def main(argv=sys.argv[1:]):
     try:
-        return BlazarShell().run(map(encodeutils.safe_decode, argv))
+        return BlazarShell().run(list(map(encodeutils.safe_decode, argv)))
     except exception.BlazarClientException:
         return 1
     except Exception as e:
diff --git a/blazarclient/tests/test_command.py b/blazarclient/tests/test_command.py
index b6067b5..a03873b 100644
--- a/blazarclient/tests/test_command.py
+++ b/blazarclient/tests/test_command.py
@@ -68,12 +68,12 @@ class BlazarCommandTestCase(tests.TestCase):
 
     def test_format_output_data(self):
         data_before = {'key_string': 'string_value',
-                       'key_dict': "{'key0': 'value', 'key1': 'value'}",
-                       'key_list': "['1', '2', '3',]",
+                       'key_dict': {'key': 'value'},
+                       'key_list': ['1', '2', '3'],
                        'key_none': None}
         data_after = {'key_string': 'string_value',
-                      'key_dict': "{'key0': 'value', 'key1': 'value'}",
-                      'key_list': "['1', '2', '3',]",
+                      'key_dict': '{"key": "value"}',
+                      'key_list': '1\n2\n3',
                       'key_none': ''}
 
         self.command.format_output_data(data_before)
diff --git a/blazarclient/utils.py b/blazarclient/utils.py
index c8ca68b..51398ac 100644
--- a/blazarclient/utils.py
+++ b/blazarclient/utils.py
@@ -14,10 +14,11 @@
 # limitations under the License.
 
 import datetime
-import json
 import os
 import re
 
+from oslo_serialization import jsonutils as json
+
 from blazarclient import exception
 from blazarclient.i18n import _