diff --git a/.frigg.yml b/.frigg.yml
index 5842592..b9ce18d 100644
--- a/.frigg.yml
+++ b/.frigg.yml
@@ -11,6 +11,7 @@ tasks:
  - tox -e py34-django16
  - tox -e py34-django17
  - tox -e py34-django18
+ - tox -e py34-django19
  - coverage combine && coverage report && coverage xml
 
 coverage:
diff --git a/tests/test_backends.py b/tests/test_backends.py
index 2f707a9..cd79573 100644
--- a/tests/test_backends.py
+++ b/tests/test_backends.py
@@ -3,9 +3,8 @@
 
 import django
 from django.contrib.auth import authenticate
-from django.test import SimpleTestCase
+from django.test import TestCase
 from django.test.utils import mail, override_settings
-from django.utils import unittest
 from mock import MagicMock, patch
 
 from nopassword.backends.base import NoPasswordBackend
@@ -15,7 +14,7 @@
 from nopassword.utils import get_user_model
 
 
-class AuthenticationBackendTests(unittest.TestCase):
+class AuthenticationBackendTests(TestCase):
     @override_settings(AUTH_USER_MODULE='tests.NoUsernameUser')
     def test_authenticate_with_custom_user_model(self):
         """When a custom user model is used that doesn't have a field
@@ -28,7 +27,7 @@ def test_authenticate_with_custom_user_model(self):
 @skipIf(django.VERSION < (1, 5), 'Custom user not supported')
 @override_settings(AUTH_USER_MODEL='tests.PhoneNumberUser', NOPASSWORD_TWILIO_SID="aaaaaaaa",
                    NOPASSWORD_TWILIO_AUTH_TOKEN="bbbbbbbb", DEFAULT_FROM_NUMBER="+15555555")
-class TwilioBackendTests(SimpleTestCase):
+class TwilioBackendTests(TestCase):
     def setUp(self):
         self.user = get_user_model().objects.create(username='twilio_user')
         self.code = LoginCode.create_code_for_user(self.user, next='/secrets/')
@@ -63,7 +62,7 @@ def test_twilio_backend_with_https(self, mock_object):
 
 
 @skipIf(django.VERSION < (1, 5), 'Custom user not supported')
-class EmailBackendTests(SimpleTestCase):
+class EmailBackendTests(TestCase):
     def setUp(self):
         self.user = get_user_model().objects.create(
             username='email_user',
@@ -97,7 +96,7 @@ def test_email_backend_with_https(self):
         self.assertIn(https_url, message.body)
 
 
-class TestBackendUtils(unittest.TestCase):
+class TestBackendUtils(TestCase):
     def setUp(self):
         self.user = get_user_model().objects.create(username='test_user')
         self.inactive_user = get_user_model().objects.create(username='inactive', is_active=False)
diff --git a/tests/test_models.py b/tests/test_models.py
index 7943e8c..f7e8ccd 100644
--- a/tests/test_models.py
+++ b/tests/test_models.py
@@ -3,13 +3,13 @@
 
 from django.contrib.auth import authenticate
 from django.test.utils import override_settings
-from django.utils import unittest
+from django.test import TestCase
 
 from nopassword.models import LoginCode
 from nopassword.utils import get_user_model
 
 
-class TestLoginCodes(unittest.TestCase):
+class TestLoginCodes(TestCase):
     def setUp(self):
         self.user = get_user_model().objects.create(username='test_user')
         self.inactive_user = get_user_model().objects.create(username='inactive', is_active=False)
diff --git a/tests/test_views.py b/tests/test_views.py
index 52621c3..1559117 100644
--- a/tests/test_views.py
+++ b/tests/test_views.py
@@ -2,14 +2,14 @@
 from django.contrib.auth import SESSION_KEY
 from django.test import Client
 from django.test.utils import override_settings
-from django.utils import unittest
+from django.test import TestCase
 from mock import patch
 
 from nopassword.models import LoginCode
 from nopassword.utils import get_user_model
 
 
-class TestViews(unittest.TestCase):
+class TestViews(TestCase):
 
     def setUp(self):
         self.c = Client()
diff --git a/tox.ini b/tox.ini
index 80f440e..f0358d5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,7 +2,7 @@
 envlist =
     flake8,isort
     {py27}-{django14},
-    {py27,py34}-{django15,django16,django17,django18}
+    {py27,py34}-{django15,django16,django17,django18,django19}
 skipsdist = True
 
 [testenv]
@@ -17,6 +17,7 @@ deps =
     django16: Django>=1.6,<1.7
     django17: Django>=1.7,<1.8
     django18: Django>=1.8,<1.9
+    django19: Django>=1.9,<1.10
 
 [testenv:flake8]
 basepython = python3.4