diff --git a/django_cas/__init__.py b/django_cas/__init__.py
index 87422ba..f66494d 100644
--- a/django_cas/__init__.py
+++ b/django_cas/__init__.py
@@ -1,6 +1,7 @@
 """Django CAS 1.0/2.0 authentication backend"""
 
 from django.conf import settings
+from six import iteritems
 
 __all__ = []
 
@@ -19,7 +20,7 @@
 CAS_URI = 'http://www.yale.edu/tp/cas'
 CAS = '{%s}' % CAS_URI
 
-for key, value in _DEFAULTS.iteritems():
+for key, value in iteritems(_DEFAULTS):
     try:
         getattr(settings, key)
     except AttributeError:
diff --git a/django_cas/backends.py b/django_cas/backends.py
index 09c4460..e4539d0 100644
--- a/django_cas/backends.py
+++ b/django_cas/backends.py
@@ -1,7 +1,6 @@
 """CAS authentication backend"""
-
-import urllib
-from urlparse import urljoin
+from six.moves.urllib.request import urlopen
+from six.moves.urllib.parse import urljoin, urlencode
 
 from django.conf import settings
 from django.core.exceptions import ObjectDoesNotExist
@@ -56,9 +55,9 @@ def _verify_cas2(ticket, service):
         params = {'ticket': ticket, 'service': service}
 
     url = (urljoin(settings.CAS_SERVER_URL, 'proxyValidate') + '?' +
-           urllib.urlencode(params))
+           urlencode(params))
 
-    page = urllib.urlopen(url)
+    page = urlopen(url)
     response = page.read()
     tree = ElementTree.fromstring(response)
     page.close()
diff --git a/django_cas/middleware.py b/django_cas/middleware.py
index fd0dbb0..59cb620 100644
--- a/django_cas/middleware.py
+++ b/django_cas/middleware.py
@@ -1,6 +1,5 @@
 """CAS authentication middleware"""
-
-from urllib import urlencode
+from six.moves.urllib.parse import urlencode
 
 from django.http import HttpResponseRedirect, HttpResponseForbidden
 from django.conf import settings
diff --git a/django_cas/models.py b/django_cas/models.py
index 30d1c85..f569153 100644
--- a/django_cas/models.py
+++ b/django_cas/models.py
@@ -1,5 +1,6 @@
-from urlparse import urljoin
-from urllib import urlencode, urlopen
+from six.moves.urllib.request import urlopen
+from six.moves.urllib.parse import urljoin, urlencode
+
 from django.db import models
 from django.conf import settings
 from django.core.exceptions import ObjectDoesNotExist
diff --git a/django_cas/urls.py b/django_cas/urls.py
index 97e10c3..d06edc1 100644
--- a/django_cas/urls.py
+++ b/django_cas/urls.py
@@ -1,11 +1,14 @@
 __author__ = 'sannies'
 
-from django.conf.urls.defaults import patterns, url
-
-
-urlpatterns = patterns('django_cas.views',
-    url(r'^login$', "login", name="cas_login"),
-    url(r'^logout$', "logout", name="cas_logout"),
-    url(r'^proxycallback$', "proxy_callback", name="cas_proxy_callback"),
-
-)
+try:
+    from django.conf.urls.defaults import url
+except ImportError:
+    from django.conf.urls import url
+
+from .views import login, logout, proxy_callback
+
+urlpatterns = [
+    url(r'^login$', login, name="cas_login"),
+    url(r'^logout$', logout, name="cas_logout"),
+    url(r'^proxycallback$', proxy_callback, name="cas_proxy_callback"),
+]
diff --git a/django_cas/views.py b/django_cas/views.py
index 11633d0..7d988ad 100644
--- a/django_cas/views.py
+++ b/django_cas/views.py
@@ -1,7 +1,7 @@
 """CAS login/logout replacement views"""
+from six.moves.urllib.parse import urljoin, urlencode
+
 from datetime import datetime
-from urllib import urlencode
-from urlparse import urljoin
 from django.contrib import messages
 from django.http import HttpResponseRedirect, HttpResponseForbidden, HttpResponse
 from django.conf import settings
@@ -129,4 +129,3 @@ def proxy_callback(request):
         return HttpResponse('PGT storage failed for %s' % str(request.GET), mimetype="text/plain")
 
     return HttpResponse('Success', mimetype="text/plain")
-
diff --git a/setup.py b/setup.py
index 359509d..0255216 100755
--- a/setup.py
+++ b/setup.py
@@ -36,5 +36,5 @@
     name='django-cas-hz',
     packages=['django_cas'],
     url='https://github.com/castlabs/django-cas',
-    version='2.1.2',
+    version='2.2.0',
 )