diff --git a/demo/requirements.pip b/demo/requirements.pip
index c6f5f42..ab0a814 100644
--- a/demo/requirements.pip
+++ b/demo/requirements.pip
@@ -2,5 +2,4 @@ django>=1.9.0
 dj-rest-auth==0.9.5
 djangorestframework>=3.7.0
 django-allauth>=0.24.1
-six==1.9.0
 django-rest-swagger==2.0.7
diff --git a/dj_rest_auth/app_settings.py b/dj_rest_auth/app_settings.py
index 9974c2d..7f8094f 100644
--- a/dj_rest_auth/app_settings.py
+++ b/dj_rest_auth/app_settings.py
@@ -8,44 +8,27 @@ from dj_rest_auth.serializers import (
     PasswordResetSerializer as DefaultPasswordResetSerializer,
     PasswordResetConfirmSerializer as DefaultPasswordResetConfirmSerializer,
     PasswordChangeSerializer as DefaultPasswordChangeSerializer)
-from .utils import import_callable, default_create_token
+from .utils import default_create_token
 
-create_token = import_callable(
-    getattr(settings, 'REST_AUTH_TOKEN_CREATOR', default_create_token))
+create_token = getattr(settings, 'REST_AUTH_TOKEN_CREATOR', default_create_token)
 
 serializers = getattr(settings, 'REST_AUTH_SERIALIZERS', {})
 
-TokenSerializer = import_callable(
-    serializers.get('TOKEN_SERIALIZER', DefaultTokenSerializer))
+TokenSerializer = serializers.get('TOKEN_SERIALIZER', DefaultTokenSerializer)
 
-JWTSerializer = import_callable(
-    serializers.get('JWT_SERIALIZER', DefaultJWTSerializer))
+JWTSerializer = serializers.get('JWT_SERIALIZER', DefaultJWTSerializer)
 
-UserDetailsSerializer = import_callable(
-    serializers.get('USER_DETAILS_SERIALIZER', DefaultUserDetailsSerializer)
-)
+UserDetailsSerializer = serializers.get('USER_DETAILS_SERIALIZER', DefaultUserDetailsSerializer)
 
-LoginSerializer = import_callable(
-    serializers.get('LOGIN_SERIALIZER', DefaultLoginSerializer)
-)
+LoginSerializer = serializers.get('LOGIN_SERIALIZER', DefaultLoginSerializer)
 
-PasswordResetSerializer = import_callable(
-    serializers.get(
+PasswordResetSerializer = serializers.get(
         'PASSWORD_RESET_SERIALIZER',
         DefaultPasswordResetSerializer
     )
+
+PasswordResetConfirmSerializer = serializers.get(
+    'PASSWORD_RESET_CONFIRM_SERIALIZER', DefaultPasswordResetConfirmSerializer
 )
 
-PasswordResetConfirmSerializer = import_callable(
-    serializers.get(
-        'PASSWORD_RESET_CONFIRM_SERIALIZER',
-        DefaultPasswordResetConfirmSerializer
-    )
-)
-
-PasswordChangeSerializer = import_callable(
-    serializers.get(
-        'PASSWORD_CHANGE_SERIALIZER',
-        DefaultPasswordChangeSerializer
-    )
-)
+PasswordChangeSerializer = serializers.get('PASSWORD_CHANGE_SERIALIZER', DefaultPasswordChangeSerializer)
diff --git a/dj_rest_auth/models.py b/dj_rest_auth/models.py
index a132f9c..5f690da 100644
--- a/dj_rest_auth/models.py
+++ b/dj_rest_auth/models.py
@@ -2,9 +2,7 @@ from django.conf import settings
 
 from rest_framework.authtoken.models import Token as DefaultTokenModel
 
-from .utils import import_callable
 
 # Register your models here.
 
-TokenModel = import_callable(
-    getattr(settings, 'REST_AUTH_TOKEN_MODEL', DefaultTokenModel))
+TokenModel = getattr(settings, 'REST_AUTH_TOKEN_MODEL', DefaultTokenModel)
diff --git a/dj_rest_auth/registration/app_settings.py b/dj_rest_auth/registration/app_settings.py
index c8cd25a..3e6db53 100644
--- a/dj_rest_auth/registration/app_settings.py
+++ b/dj_rest_auth/registration/app_settings.py
@@ -2,18 +2,17 @@ from django.conf import settings
 
 from rest_framework.permissions import AllowAny
 from rest_auth.registration.serializers import (
-    RegisterSerializer as DefaultRegisterSerializer)
-from ..utils import import_callable
+    RegisterSerializer as DefaultRegisterSerializer
+)
 
 
 serializers = getattr(settings, 'REST_AUTH_REGISTER_SERIALIZERS', {})
 
-RegisterSerializer = import_callable(
-    serializers.get('REGISTER_SERIALIZER', DefaultRegisterSerializer))
+RegisterSerializer = serializers.get('REGISTER_SERIALIZER', DefaultRegisterSerializer)
 
 
 def register_permission_classes():
     permission_classes = [AllowAny, ]
     for klass in getattr(settings, 'REST_AUTH_REGISTER_PERMISSION_CLASSES', tuple()):
-        permission_classes.append(import_callable(klass))
+        permission_classes.append(klass)
     return tuple(permission_classes)
diff --git a/dj_rest_auth/serializers.py b/dj_rest_auth/serializers.py
index b645231..da8fef7 100644
--- a/dj_rest_auth/serializers.py
+++ b/dj_rest_auth/serializers.py
@@ -10,7 +10,6 @@ from rest_framework import serializers, exceptions
 from rest_framework.exceptions import ValidationError
 
 from .models import TokenModel
-from .utils import import_callable
 
 # Get the UserModel
 UserModel = get_user_model()
@@ -146,9 +145,7 @@ class JWTSerializer(serializers.Serializer):
         JWTSerializer. Defining it here to avoid circular imports
         """
         rest_auth_serializers = getattr(settings, 'REST_AUTH_SERIALIZERS', {})
-        JWTUserDetailsSerializer = import_callable(
-            rest_auth_serializers.get('USER_DETAILS_SERIALIZER', UserDetailsSerializer)
-        )
+        JWTUserDetailsSerializer = rest_auth_serializers.get('USER_DETAILS_SERIALIZER', UserDetailsSerializer)
         user_data = JWTUserDetailsSerializer(obj['user'], context=self.context).data
         return user_data
 
diff --git a/dj_rest_auth/utils.py b/dj_rest_auth/utils.py
index 800f184..b69dae0 100644
--- a/dj_rest_auth/utils.py
+++ b/dj_rest_auth/utils.py
@@ -1,15 +1,3 @@
-from six import string_types
-from importlib import import_module
-
-
-def import_callable(path_or_callable):
-    if hasattr(path_or_callable, '__call__'):
-        return path_or_callable
-    else:
-        assert isinstance(path_or_callable, string_types)
-        package, attr = path_or_callable.rsplit('.', 1)
-        return getattr(import_module(package), attr)
-
 
 def default_create_token(token_model, user, serializer):
     token, _ = token_model.objects.get_or_create(user=user)
diff --git a/setup.py b/setup.py
index 472ce6b..a57994e 100644
--- a/setup.py
+++ b/setup.py
@@ -25,7 +25,6 @@ setup(
     install_requires=[
         'Django>=1.8.0',
         'djangorestframework>=3.1.3',
-        'six>=1.9.0',
     ],
     extras_require={
         'with_social': ['django-allauth>=0.25.0'],