diff --git a/transifex/api/jsonapi/apis.py b/transifex/api/jsonapi/apis.py
index 23c929d..079c53f 100644
--- a/transifex/api/jsonapi/apis.py
+++ b/transifex/api/jsonapi/apis.py
@@ -1,10 +1,6 @@
-from __future__ import absolute_import, unicode_literals
-
 from copy import deepcopy
 
 import requests
-import six
-
 from .auth import BearerAuthentication
 from .compat import JSONDecodeError
 from .exceptions import JsonApiException
@@ -60,7 +56,7 @@ def __new__(cls, *args, **kwargs):
         return result
 
 
-class JsonApi(six.with_metaclass(_JsonApiMetaclass, object)):
+class JsonApi(metaclass=_JsonApiMetaclass):
     """Inteface for a new {json:api} API connection. Initialization
     parameters:
 
diff --git a/transifex/api/jsonapi/utils.py b/transifex/api/jsonapi/utils.py
index eab7075..b6ffe17 100644
--- a/transifex/api/jsonapi/utils.py
+++ b/transifex/api/jsonapi/utils.py
@@ -1,8 +1,4 @@
-from __future__ import absolute_import, unicode_literals
-
-import six
-
-from .compat import abc
+from collections import abc
 
 
 def is_resource(value):
@@ -22,7 +18,7 @@ def is_dict(value):
 
 
 def is_list(value):
-    return isinstance(value, abc.Sequence) and not isinstance(value, six.string_types)
+    return isinstance(value, abc.Sequence) and not isinstance(value, str)
 
 
 def is_null(value):