diff --git a/bijoe/engine.py b/bijoe/engine.py
index a336eff..0b57f2a 100644
--- a/bijoe/engine.py
+++ b/bijoe/engine.py
@@ -25,7 +25,6 @@ import psycopg2
 from django.conf import settings
 from django.core.cache import cache
 from django.utils.encoding import force_bytes, force_text
-from django.utils.six import python_2_unicode_compatible
 from django.utils.translation import ugettext_lazy as _
 
 from . import schemas
@@ -34,7 +33,6 @@ psycopg2.extensions.register_type(psycopg2.extensions.UNICODE)
 psycopg2.extensions.register_type(psycopg2.extensions.UNICODEARRAY)
 
 
-@python_2_unicode_compatible
 class DimensionCell(collections.namedtuple('_Cell', ['dimension', 'value', 'value_label'])):
     @property
     def label(self):
@@ -51,7 +49,6 @@ class DimensionCell(collections.namedtuple('_Cell', ['dimension', 'value', 'valu
         return force_text(self.label)
 
 
-@python_2_unicode_compatible
 class MeasureCell(collections.namedtuple('_Cell', ['measure', 'value'])):
     @property
     def label(self):
diff --git a/bijoe/visualization/models.py b/bijoe/visualization/models.py
index f8805df..87fd304 100644
--- a/bijoe/visualization/models.py
+++ b/bijoe/visualization/models.py
@@ -19,7 +19,6 @@ import json
 
 from django.db import models
 from django.http import Http404
-from django.utils.six import python_2_unicode_compatible
 from django.utils.text import slugify
 from django.utils.translation import ugettext_lazy as _
 from jsonfield import JSONField
@@ -39,7 +38,6 @@ class JSONEncoder(json.JSONEncoder):
         return json.JSONEncoder.default(self, obj)
 
 
-@python_2_unicode_compatible
 class Visualization(models.Model):
     slug = models.SlugField(verbose_name=_('Identifier'), unique=True)
     name = models.TextField(verbose_name=_('name'))