diff --git a/openedx/core/djangoapps/oauth_dispatch/models.py b/openedx/core/djangoapps/oauth_dispatch/models.py
index 42a58e2918..fb383ee4cf 100644
--- a/openedx/core/djangoapps/oauth_dispatch/models.py
+++ b/openedx/core/djangoapps/oauth_dispatch/models.py
@@ -8,6 +8,7 @@ from datetime import datetime
 
 import six
 from django.db import models
+from django.utils.encoding import python_2_unicode_compatible
 from django.utils.translation import ugettext_lazy as _
 from django_mysql.models import ListCharField
 from oauth2_provider.settings import oauth2_settings
@@ -19,6 +20,7 @@ from openedx.core.djangolib.markup import HTML
 from openedx.core.lib.request_utils import get_request_or_stub
 
 
+@python_2_unicode_compatible
 class RestrictedApplication(models.Model):
     """
     This model lists which django-oauth-toolkit Applications are considered 'restricted'
@@ -35,7 +37,7 @@ class RestrictedApplication(models.Model):
     class Meta:
         app_label = 'oauth_dispatch'
 
-    def __unicode__(self):
+    def __str__(self):
         """
         Return a unicode representation of this object
         """
@@ -59,6 +61,7 @@ class RestrictedApplication(models.Model):
         return access_token.expires == datetime(1970, 1, 1, tzinfo=utc)
 
 
+@python_2_unicode_compatible
 class ApplicationAccess(models.Model):
     """
     Specifies access control information for the associated Application.
@@ -81,7 +84,7 @@ class ApplicationAccess(models.Model):
     def get_scopes(cls, application):
         return cls.objects.get(application=application).scopes
 
-    def __unicode__(self):
+    def __str__(self):
         """
         Return a unicode representation of this object.
         """
@@ -91,6 +94,7 @@ class ApplicationAccess(models.Model):
         )
 
 
+@python_2_unicode_compatible
 class ApplicationOrganization(models.Model):
     """
     Associates a DOT Application to an Organization.
@@ -129,7 +133,7 @@ class ApplicationOrganization(models.Model):
             queryset = queryset.filter(relation_type=relation_type)
         return [r.organization.name for r in queryset]
 
-    def __unicode__(self):
+    def __str__(self):
         """
         Return a unicode representation of this object.
         """
diff --git a/openedx/core/djangoapps/oauth_dispatch/tests/test_views.py b/openedx/core/djangoapps/oauth_dispatch/tests/test_views.py
index 7722872aad..25e4585e28 100644
--- a/openedx/core/djangoapps/oauth_dispatch/tests/test_views.py
+++ b/openedx/core/djangoapps/oauth_dispatch/tests/test_views.py
@@ -63,7 +63,7 @@ class AccessTokenLoginMixin(object):
 
         return self.client.post(
             self.login_with_access_token_url,
-            HTTP_AUTHORIZATION=b"Bearer {0}".format(access_token if access_token else self.access_token)
+            HTTP_AUTHORIZATION=u"Bearer {0}".format(access_token if access_token else self.access_token).encode('utf-8')
         )
 
     def _assert_access_token_is_valid(self, access_token=None):