diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
new file mode 100644
index 0000000..6a125b4
--- /dev/null
+++ b/.github/workflows/tests.yml
@@ -0,0 +1,84 @@
+# copied from django-cte
+name: entity_emailer tests
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master,develop]
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python: ['3.7', '3.8', '3.9']
+        # Time to switch to pytest or nose2??
+        # nosetests is broken on 3.10
+        # AttributeError: module 'collections' has no attribute 'Callable'
+        # https://github.com/nose-devs/nose/issues/1099
+        django:
+          - 'Django~=3.2.0'
+          - 'Django~=4.0.0'
+          - 'Django~=4.1.0'
+          - 'Django~=4.2.0'
+        experimental: [false]
+#        include:
+#        - python: '3.9'
+#          django: 'https://github.com/django/django/archive/refs/heads/main.zip#egg=Django'
+#          experimental: true
+#          # NOTE this job will appear to pass even when it fails because of
+#          # `continue-on-error: true`. Github Actions apparently does not
+#          # have this feature, similar to Travis' allow-failure, yet.
+#          # https://github.com/actions/toolkit/issues/399
+        exclude:
+        - python: '3.7'
+          django: 'Django~=4.0.0'
+        - python: '3.7'
+          django: 'Django~=4.1.0'
+        - python: '3.7'
+          django: 'Django~=4.2.0'
+    services:
+      postgres:
+        image: postgres:latest
+        env:
+          POSTGRES_DB: postgres
+          POSTGRES_PASSWORD: postgres
+          POSTGRES_USER: postgres
+        ports:
+          - 5432:5432
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python }}
+    - name: Setup
+      run: |
+        python --version
+        pip install --upgrade pip wheel
+        pip install -r requirements/requirements.txt
+        pip install -r requirements/requirements-testing.txt
+        pip install "${{ matrix.django }}"
+        pip freeze
+    - name: Run tests
+      env:
+        DB_SETTINGS: >-
+          {
+            "ENGINE":"django.db.backends.postgresql_psycopg2",
+            "NAME":"entity_emailer",
+            "USER":"postgres",
+            "PASSWORD":"postgres",
+            "HOST":"localhost",
+            "PORT":"5432"
+          }
+      run: |
+        coverage run manage.py test entity_emailer
+        coverage report --fail-under=99
+      continue-on-error: ${{ matrix.experimental }}
+    - name: Check style
+      run: flake8 entity_emailer
diff --git a/entity_emailer/__init__.py b/entity_emailer/__init__.py
index c9a8486..ed53594 100644
--- a/entity_emailer/__init__.py
+++ b/entity_emailer/__init__.py
@@ -1,4 +1,2 @@
 # flake8: noqa
 from .version import __version__
-
-default_app_config = 'entity_emailer.apps.EntityEmailerConfig'
diff --git a/entity_emailer/migrations/0001_0004_squashed.py b/entity_emailer/migrations/0001_0004_squashed.py
new file mode 100644
index 0000000..71ceffb
--- /dev/null
+++ b/entity_emailer/migrations/0001_0004_squashed.py
@@ -0,0 +1,37 @@
+# Generated by Django 3.2.19 on 2023-06-01 13:10
+
+import datetime
+from django.db import migrations, models
+import django.db.models.deletion
+import uuid
+
+
+class Migration(migrations.Migration):
+    replaces = [('entity_emailer', '0001_initial'),
+                ('entity_emailer', '0002_auto_20170919_1653'),
+                ('entity_emailer', '0003_email_exception'),
+                ('entity_emailer', '0004_email_num_tries')]
+
+    dependencies = [
+        ('entity_event', '0001_initial'),
+        ('entity', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Email',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('view_uid', models.UUIDField(default=uuid.uuid4, editable=False)),
+                ('subject', models.CharField(max_length=256)),
+                ('from_address', models.CharField(default='', max_length=256)),
+                ('uid', models.CharField(default=None, max_length=100, null=True, unique=True)),
+                ('scheduled', models.DateTimeField(default=datetime.datetime.utcnow, null=True)),
+                ('sent', models.DateTimeField(default=None, null=True)),
+                ('event', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='entity_event.event')),
+                ('recipients', models.ManyToManyField(to='entity.Entity')),
+                ('exception', models.TextField(default=None, null=True)),
+                ('num_tries', models.IntegerField(default=0)),
+            ],
+        ),
+    ]
diff --git a/entity_emailer/migrations/0001_initial.py b/entity_emailer/migrations/0001_initial.py
deleted file mode 100644
index c38764a..0000000
--- a/entity_emailer/migrations/0001_initial.py
+++ /dev/null
@@ -1,42 +0,0 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
-from django.db import models, migrations
-import django.db.models.deletion
-import datetime
-import uuid
-
-
-if hasattr(models, 'UUIDField'):
-    uuid_field = ('view_uid', models.UUIDField(default=uuid.uuid4, editable=False))
-else:
-    import uuidfield.fields
-    uuid_field = ('view_uid', uuidfield.fields.UUIDField(editable=False, unique=True, max_length=32, blank=True)),
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('entity_event', '0001_initial'),
-        ('entity', '0001_initial'),
-    ]
-
-    operations = [
-        migrations.CreateModel(
-            name='Email',
-            fields=[
-                ('id', models.AutoField(primary_key=True, verbose_name='ID', auto_created=True, serialize=False)),
-                uuid_field,
-                ('subject', models.CharField(max_length=256)),
-                ('from_address', models.CharField(default='', max_length=256)),
-                ('uid', models.CharField(null=True, default=None, unique=True, max_length=100)),
-                ('scheduled', models.DateTimeField(null=True, default=datetime.datetime.utcnow)),
-                ('sent', models.DateTimeField(null=True, default=None)),
-                ('event', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='entity_event.Event')),
-                ('recipients', models.ManyToManyField(to='entity.Entity')),
-            ],
-            options={
-            },
-            bases=(models.Model,),
-        ),
-    ]
diff --git a/entity_emailer/migrations/0002_auto_20170919_1653.py b/entity_emailer/migrations/0002_auto_20170919_1653.py
deleted file mode 100644
index 7c8cf28..0000000
--- a/entity_emailer/migrations/0002_auto_20170919_1653.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# -*- coding: utf-8 -*-
-# Generated by Django 1.9.11 on 2017-09-19 16:53
-from __future__ import unicode_literals
-
-from django.db import migrations, models
-import uuid
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('entity_emailer', '0001_initial'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='email',
-            name='view_uid',
-            field=models.UUIDField(default=uuid.uuid4, editable=False),
-        ),
-    ]
diff --git a/entity_emailer/migrations/0003_email_exception.py b/entity_emailer/migrations/0003_email_exception.py
deleted file mode 100644
index c11943e..0000000
--- a/entity_emailer/migrations/0003_email_exception.py
+++ /dev/null
@@ -1,18 +0,0 @@
-# Generated by Django 2.2.10 on 2020-02-10 18:37
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('entity_emailer', '0002_auto_20170919_1653'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='email',
-            name='exception',
-            field=models.TextField(default=None, null=True),
-        ),
-    ]
diff --git a/entity_emailer/migrations/0004_email_num_tries.py b/entity_emailer/migrations/0004_email_num_tries.py
deleted file mode 100644
index 1d693d6..0000000
--- a/entity_emailer/migrations/0004_email_num_tries.py
+++ /dev/null
@@ -1,18 +0,0 @@
-# Generated by Django 2.2.13 on 2021-03-02 21:05
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('entity_emailer', '0003_email_exception'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='email',
-            name='num_tries',
-            field=models.IntegerField(default=0),
-        ),
-    ]
diff --git a/entity_emailer/signals.py b/entity_emailer/signals.py
index 8283156..9a08a62 100644
--- a/entity_emailer/signals.py
+++ b/entity_emailer/signals.py
@@ -2,7 +2,9 @@
 
 
 # An event that will be fired prior to an email being sent
-pre_send = Signal(providing_args=['email', 'event', 'context', 'message'])
+pre_send = Signal()
+"""providing_args=['email', 'event', 'context', 'message']"""
 
 # An event that will be fired if an exception occurs when trying to send an email
-email_exception = Signal(providing_args=['email', 'exception'])
+email_exception = Signal()
+"""providing_args=['email', 'exception']"""
diff --git a/entity_emailer/tests/interface_tests.py b/entity_emailer/tests/interface_tests.py
index eda7dde..ff5ef27 100644
--- a/entity_emailer/tests/interface_tests.py
+++ b/entity_emailer/tests/interface_tests.py
@@ -14,7 +14,7 @@
     Medium, Source, Subscription, Unsubscription, Event, EventActor
 )
 from freezegun import freeze_time
-from mock import patch
+from unittest.mock import patch
 
 from entity_emailer.interface import EntityEmailerInterface
 from entity_emailer.models import Email
@@ -26,28 +26,28 @@
 class ExtractEmailSubjectFromHtmlContentTest(SimpleTestCase):
     def test_blank(self):
         subject = extract_email_subject_from_html_content('')
-        self.assertEquals(subject, '')
+        self.assertEqual(subject, '')
 
     def test_with_title_block(self):
         subject = extract_email_subject_from_html_content('<html><head><title> Hello! </title></head></html>')
-        self.assertEquals(subject, 'Hello!')
+        self.assertEqual(subject, 'Hello!')
 
     def test_wo_title_block_under_40_chars_content(self):
         subject = extract_email_subject_from_html_content(' Small content ')
-        self.assertEquals(subject, 'Small content')
+        self.assertEqual(subject, 'Small content')
 
     def test_wo_title_block_under_40_chars_multiline_content(self):
         subject = extract_email_subject_from_html_content((
             ' Small content \n'
             'that spans multiple lines'
         ))
-        self.assertEquals(subject, 'Small content')
+        self.assertEqual(subject, 'Small content')
 
     def test_wo_title_block_gt_40_chars_content(self):
         subject = extract_email_subject_from_html_content((
             ' This is reallly long content that is greater than 40 chars on the first line. It should have ...'
         ))
-        self.assertEquals(subject, 'This is reallly long content that is gre...')
+        self.assertEqual(subject, 'This is reallly long content that is gre...')
 
 
 class ConvertEventsToEmailsTest(TestCase):
@@ -113,10 +113,10 @@ def test_basic_only_following_false_subscription(self):
         EntityEmailerInterface.convert_events_to_emails()
 
         email = Email.objects.get()
-        self.assertEquals(list(email.recipients.all()), [e])
-        self.assertEquals(email.event.context, email_context)
-        self.assertEquals(email.subject, '')
-        self.assertEquals(email.scheduled, datetime(2013, 1, 2))
+        self.assertEqual(list(email.recipients.all()), [e])
+        self.assertEqual(email.event.context, email_context)
+        self.assertEqual(email.subject, '')
+        self.assertEqual(email.scheduled, datetime(2013, 1, 2))
 
     @freeze_time('2013-1-2')
     def test_basic_only_following_false_subscription_marked_seen(self):
@@ -134,10 +134,10 @@ def test_basic_only_following_false_subscription_marked_seen(self):
         EntityEmailerInterface.convert_events_to_emails()
 
         email = Email.objects.get()
-        self.assertEquals(list(email.recipients.all()), [e])
-        self.assertEquals(email.event.context, email_context)
-        self.assertEquals(email.subject, '')
-        self.assertEquals(email.scheduled, datetime(2013, 1, 2))
+        self.assertEqual(list(email.recipients.all()), [e])
+        self.assertEqual(email.event.context, email_context)
+        self.assertEqual(email.subject, '')
+        self.assertEqual(email.scheduled, datetime(2013, 1, 2))
 
     @freeze_time('2013-1-2')
     def test_basic_only_following_true_subscription(self):
@@ -160,10 +160,10 @@ def test_basic_only_following_true_subscription(self):
 
         email = Email.objects.get()
         # Since the other_e entity does not follow the se entity, only the e entity receives an email
-        self.assertEquals(set(email.recipients.all()), set([e]))
-        self.assertEquals(email.event.context, email_context)
-        self.assertEquals(email.subject, '')
-        self.assertEquals(email.scheduled, datetime(2013, 1, 2))
+        self.assertEqual(set(email.recipients.all()), set([e]))
+        self.assertEqual(email.event.context, email_context)
+        self.assertEqual(email.subject, '')
+        self.assertEqual(email.scheduled, datetime(2013, 1, 2))
 
     @freeze_time('2013-1-2')
     def test_super_entity_only_following_false_subscription(self):
@@ -187,10 +187,10 @@ def test_super_entity_only_following_false_subscription(self):
         EntityEmailerInterface.convert_events_to_emails()
 
         email = Email.objects.get()
-        self.assertEquals(set(email.recipients.all()), set([e, other_e]))
-        self.assertEquals(email.event.context, email_context)
-        self.assertEquals(email.subject, '')
-        self.assertEquals(email.scheduled, datetime(2013, 1, 2))
+        self.assertEqual(set(email.recipients.all()), set([e, other_e]))
+        self.assertEqual(email.event.context, email_context)
+        self.assertEqual(email.subject, '')
+        self.assertEqual(email.scheduled, datetime(2013, 1, 2))
 
     @freeze_time('2013-1-2')
     def test_basic_only_following_true_group_subscription(self):
@@ -214,10 +214,10 @@ def test_basic_only_following_true_group_subscription(self):
 
         email = Email.objects.get()
         # Both entities are subscribed with a group subscription and are following the super entity of the event
-        self.assertEquals(set(email.recipients.all()), set([e, other_e]))
-        self.assertEquals(email.event.context, email_context)
-        self.assertEquals(email.subject, '')
-        self.assertEquals(email.scheduled, datetime(2013, 1, 2))
+        self.assertEqual(set(email.recipients.all()), set([e, other_e]))
+        self.assertEqual(email.event.context, email_context)
+        self.assertEqual(email.subject, '')
+        self.assertEqual(email.scheduled, datetime(2013, 1, 2))
 
     @freeze_time('2013-1-2')
     def test_basic_only_following_false_group_subscription(self):
@@ -241,10 +241,10 @@ def test_basic_only_following_false_group_subscription(self):
 
         email = Email.objects.get()
         # Both entities are subscribed with a group subscription and are following the super entity of the event
-        self.assertEquals(set(email.recipients.all()), set([e, other_e]))
-        self.assertEquals(email.event.context, email_context)
-        self.assertEquals(email.subject, '')
-        self.assertEquals(email.scheduled, datetime(2013, 1, 2))
+        self.assertEqual(set(email.recipients.all()), set([e, other_e]))
+        self.assertEqual(email.event.context, email_context)
+        self.assertEqual(email.subject, '')
+        self.assertEqual(email.scheduled, datetime(2013, 1, 2))
 
     @freeze_time('2013-1-2')
     def test_basic_only_following_false_group_subscription_with_unsubscribed(self):
@@ -268,10 +268,10 @@ def test_basic_only_following_false_group_subscription_with_unsubscribed(self):
         EntityEmailerInterface.convert_events_to_emails()
 
         email = Email.objects.get()
-        self.assertEquals(set(email.recipients.all()), set([other_e]))
-        self.assertEquals(email.event.context, email_context)
-        self.assertEquals(email.subject, '')
-        self.assertEquals(email.scheduled, datetime(2013, 1, 2))
+        self.assertEqual(set(email.recipients.all()), set([other_e]))
+        self.assertEqual(email.event.context, email_context)
+        self.assertEqual(email.subject, '')
+        self.assertEqual(email.scheduled, datetime(2013, 1, 2))
 
     @freeze_time('2013-1-2')
     def test_multiple_events_only_following_false(self):
@@ -290,12 +290,12 @@ def test_multiple_events_only_following_false(self):
 
         EntityEmailerInterface.convert_events_to_emails()
 
-        self.assertEquals(Email.objects.count(), 2)
+        self.assertEqual(Email.objects.count(), 2)
         for email in Email.objects.all():
-            self.assertEquals(set(email.recipients.all()), set([e, other_e]))
-            self.assertEquals(email.event.context, email_context)
-            self.assertEquals(email.subject, '')
-            self.assertEquals(email.scheduled, datetime(2013, 1, 2))
+            self.assertEqual(set(email.recipients.all()), set([e, other_e]))
+            self.assertEqual(email.event.context, email_context)
+            self.assertEqual(email.subject, '')
+            self.assertEqual(email.scheduled, datetime(2013, 1, 2))
 
     @freeze_time('2013-1-2')
     def test_bulk_multiple_events_only_following_false(self):
@@ -319,12 +319,12 @@ def test_bulk_multiple_events_only_following_false(self):
 
         EntityEmailerInterface.bulk_convert_events_to_emails()
 
-        self.assertEquals(Email.objects.count(), 2)
+        self.assertEqual(Email.objects.count(), 2)
         for email in Email.objects.all():
-            self.assertEquals(set(email.recipients.all()), set([e, other_e]))
-            self.assertEquals(email.event.context, email_context)
-            self.assertEquals(email.subject, '')
-            self.assertEquals(email.scheduled, datetime(2013, 1, 2))
+            self.assertEqual(set(email.recipients.all()), set([e, other_e]))
+            self.assertEqual(email.event.context, email_context)
+            self.assertEqual(email.subject, '')
+            self.assertEqual(email.scheduled, datetime(2013, 1, 2))
 
     @freeze_time('2013-1-2')
     def test_bulk_multiple_events_only_following_true(self):
@@ -350,10 +350,10 @@ def test_bulk_multiple_events_only_following_true(self):
         EntityEmailerInterface.bulk_convert_events_to_emails()
 
         email = Email.objects.get()
-        self.assertEquals(set(email.recipients.all()), set([e]))
-        self.assertEquals(email.event.context, email_context)
-        self.assertEquals(email.subject, '')
-        self.assertEquals(email.scheduled, datetime(2013, 1, 2))
+        self.assertEqual(set(email.recipients.all()), set([e]))
+        self.assertEqual(email.event.context, email_context)
+        self.assertEqual(email.subject, '')
+        self.assertEqual(email.scheduled, datetime(2013, 1, 2))
 
     @freeze_time('2013-1-2')
     def test_multiple_events_only_following_true(self):
@@ -374,10 +374,10 @@ def test_multiple_events_only_following_true(self):
         EntityEmailerInterface.convert_events_to_emails()
 
         email = Email.objects.get()
-        self.assertEquals(set(email.recipients.all()), set([e]))
-        self.assertEquals(email.event.context, email_context)
-        self.assertEquals(email.subject, '')
-        self.assertEquals(email.scheduled, datetime(2013, 1, 2))
+        self.assertEqual(set(email.recipients.all()), set([e]))
+        self.assertEqual(email.event.context, email_context)
+        self.assertEqual(email.subject, '')
+        self.assertEqual(email.scheduled, datetime(2013, 1, 2))
 
 
 @freeze_time('2014-01-05')
@@ -531,7 +531,7 @@ def test_exceptions(self, render_mock, address_mock, mock_email_exception):
             self.assertEqual(Email.objects.filter(sent__isnull=False).count(), 1)
 
             # Assert that only one email is actually sent through backend
-            self.assertEquals(1, mock_connection.call_count)
+            self.assertEqual(1, mock_connection.call_count)
             # Assert that one email raised an exception and that the tries count was updated
             exception_email = Email.objects.get(exception__isnull=False, num_tries=1)
             self.assertIsNotNone(exception_email)
@@ -558,7 +558,7 @@ def test_send_exceptions_and_retry(self, mock_get_subscribed_addresses, mock_ren
         mock_render.return_value = ('foo', 'bar',)
 
         # Verify baseline, namely that both emails are not marked as sent and that neither has an exception saved
-        self.assertEquals(2, Email.objects.filter(sent__isnull=True).count())
+        self.assertEqual(2, Email.objects.filter(sent__isnull=True).count())
 
         class TestEmailSendMessageException(Exception):
             @property
@@ -575,11 +575,11 @@ def to_dict(self):
             EntityEmailerInterface.send_unsent_scheduled_emails()
 
         # Verify that only one email is marked as sent
-        self.assertEquals(1, Email.objects.filter(sent__isnull=False).count())
+        self.assertEqual(1, Email.objects.filter(sent__isnull=False).count())
         # Verify that the failed email was saved with the exception
         actual_failed_email = Email.objects.get(exception__isnull=False, num_tries=1)
-        self.assertEquals(failed_email.id, actual_failed_email.id)
-        self.assertEquals(
+        self.assertEqual(failed_email.id, actual_failed_email.id)
+        self.assertEqual(
             'test: {}'.format(json.dumps({'message': 'test'})),
             actual_failed_email.exception
         )
@@ -594,11 +594,11 @@ def to_dict(self):
             EntityEmailerInterface.send_unsent_scheduled_emails()
 
             # Verify only called once, with the failed email
-            self.assertEquals(1, mock_connection.return_value.__enter__.return_value.send_messages.call_count)
+            self.assertEqual(1, mock_connection.return_value.__enter__.return_value.send_messages.call_count)
 
         # Verify num tries updated
         actual_failed_email = Email.objects.get(exception__isnull=False, num_tries=2)
-        self.assertEquals(failed_email.id, actual_failed_email.id)
+        self.assertEqual(failed_email.id, actual_failed_email.id)
 
         # Verify that a subsequent attempt to send unscheduled emails will find no emails to send
         with patch(settings.EMAIL_BACKEND) as mock_connection:
@@ -606,11 +606,11 @@ def to_dict(self):
             EntityEmailerInterface.send_unsent_scheduled_emails()
 
             # Verify only called once, with the failed email
-            self.assertEquals(0, mock_connection.return_value.__enter__.return_value.send_messages.call_count)
+            self.assertEqual(0, mock_connection.return_value.__enter__.return_value.send_messages.call_count)
 
         # Verify num tries not updated
         actual_failed_email = Email.objects.get(exception__isnull=False, num_tries=2)
-        self.assertEquals(failed_email.id, actual_failed_email.id)
+        self.assertEqual(failed_email.id, actual_failed_email.id)
 
     @override_settings(DISABLE_DURABILITY_CHECKING=True, ENTITY_EMAILER_MAX_SEND_MESSAGE_TRIES=2)
     @patch.object(Event, 'render', spec_set=True)
@@ -627,7 +627,7 @@ def test_send_exception_with_to_dict_method(self, mock_get_subscribed_addresses,
         mock_render.return_value = ('foo', 'bar',)
 
         # Verify baseline, namely that both emails are not marked as sent and that neither has an exception saved
-        self.assertEquals(2, Email.objects.filter(sent__isnull=True).count())
+        self.assertEqual(2, Email.objects.filter(sent__isnull=True).count())
 
         class TestEmailSendMessageException(Exception):
             def to_dict(self):
@@ -643,11 +643,11 @@ def to_dict(self):
             EntityEmailerInterface.send_unsent_scheduled_emails()
 
         # Verify that only one email is marked as sent
-        self.assertEquals(1, Email.objects.filter(sent__isnull=False).count())
+        self.assertEqual(1, Email.objects.filter(sent__isnull=False).count())
         # Verify that the failed email was saved with the exception
         actual_failed_email = Email.objects.get(exception__isnull=False, num_tries=1)
-        self.assertEquals(failed_email.id, actual_failed_email.id)
-        self.assertEquals(
+        self.assertEqual(failed_email.id, actual_failed_email.id)
+        self.assertEqual(
             'test: {}'.format(json.dumps({'message': 'test'})),
             actual_failed_email.exception
         )
diff --git a/entity_emailer/tests/test_views.py b/entity_emailer/tests/test_views.py
index f64c5e0..7bb3b3e 100644
--- a/entity_emailer/tests/test_views.py
+++ b/entity_emailer/tests/test_views.py
@@ -3,7 +3,6 @@
 from django_dynamic_fixture import G
 from entity.models import Entity
 from entity_event.models import Medium, RenderingStyle, ContextRenderer, Source, Event
-import six
 
 from entity_emailer.tests.utils import g_email
 
@@ -30,8 +29,7 @@ def test_html_path(self):
         url = reverse('entity_emailer.email', args=[email.view_uid])
         response = self.client.get(url)
         content = response.content
-        if six.PY3:  # pragma: no cover
-            content = content.decode('utf8')
+        content = content.decode('utf8')
 
         self.assertEqual(content, '<html>Hi Swansonbot</html>')
 
@@ -50,8 +48,7 @@ def test_text_path(self):
         url = reverse('entity_emailer.email', args=[email.view_uid])
         response = self.client.get(url)
         content = response.content
-        if six.PY3:  # pragma: no cover
-            content = content.decode('utf8')
+        content = content.decode('utf8')
         self.assertEqual(content, 'Hi Swansonbot')
 
     def test_text_and_html_path(self):
@@ -73,7 +70,6 @@ def test_text_and_html_path(self):
         url = reverse('entity_emailer.email', args=[email.view_uid])
         response = self.client.get(url)
         content = response.content
-        if six.PY3:  # pragma: no cover
-            content = content.decode('utf8')
+        content = content.decode('utf8')
 
         self.assertEqual(content, '<html>Hi Swansonbot</html>')
diff --git a/entity_emailer/urls.py b/entity_emailer/urls.py
index 472a984..6cc3231 100644
--- a/entity_emailer/urls.py
+++ b/entity_emailer/urls.py
@@ -1,8 +1,8 @@
-from django.conf.urls import url
+from django.urls import re_path
 
 from entity_emailer.views import EmailView
 
 
 urlpatterns = [
-    url(r'^([0-9a-z\-]+)/$', EmailView.as_view(), name='entity_emailer.email'),
+    re_path(r'^([0-9a-z\-]+)/$', EmailView.as_view(), name='entity_emailer.email'),
 ]
diff --git a/entity_emailer/version.py b/entity_emailer/version.py
index f811561..04188a1 100644
--- a/entity_emailer/version.py
+++ b/entity_emailer/version.py
@@ -1 +1 @@
-__version__ = '2.1.2'
+__version__ = '2.2.0'
diff --git a/manage.py b/manage.py
index e374933..b997ce1 100644
--- a/manage.py
+++ b/manage.py
@@ -1,6 +1,13 @@
 #!/usr/bin/env python
 import sys
 
+# Show warnings about django deprecations - uncomment for version upgrade testing
+import warnings
+from django.utils.deprecation import RemovedInNextVersionWarning
+warnings.filterwarnings('always', category=DeprecationWarning)
+warnings.filterwarnings('always', category=PendingDeprecationWarning)
+warnings.filterwarnings('always', category=RemovedInNextVersionWarning)
+
 from settings import configure_settings
 
 
diff --git a/release_notes.rst b/release_notes.rst
index c17705e..aa6cd27 100644
--- a/release_notes.rst
+++ b/release_notes.rst
@@ -1,6 +1,12 @@
 Release Notes
 =============
 
+v2.2.0
+------
+* Django 4.2 support
+* Drop django 2 support
+* Remove external uuid field dependency
+
 v2.1.2
 ------
 * Fix issue for not marking email as sent when no email addresses exist
diff --git a/requirements/requirements-testing.txt b/requirements/requirements-testing.txt
index 1dd1fa8..a4462b1 100644
--- a/requirements/requirements-testing.txt
+++ b/requirements/requirements-testing.txt
@@ -1,7 +1,6 @@
-coverage==4.5.1
+coverage<7
 django-dynamic-fixture
-django-nose==1.4.5
-flake8==3.5.0
-freezegun==0.3.12
-mock==2.0.0
-psycopg2>=2.7.7
+django-nose
+flake8
+freezegun
+psycopg2
diff --git a/requirements/requirements.txt b/requirements/requirements.txt
index 4a4a735..6cf9685 100644
--- a/requirements/requirements.txt
+++ b/requirements/requirements.txt
@@ -1,9 +1,8 @@
-Django>=2.2
+Django>=3.2
 
-django-db-mutex>=2.0.0
-django-entity>=5.0.0
-django-entity-event>=2.0.0
-ambition-django-uuidfield>=0.5.0
-ambition-utils>=2.2.0
+django-db-mutex>=3.1.0
+django-entity>=6.1.0
+django-entity-event>=3.1.0
+ambition-utils>=3.1.6
 
 beautifulsoup4>=4.3.2
diff --git a/settings.py b/settings.py
index 18ffa74..617ca85 100644
--- a/settings.py
+++ b/settings.py
@@ -1,4 +1,5 @@
 import os
+import json
 
 from django.conf import settings
 
@@ -16,7 +17,7 @@ def configure_settings():
 
         if test_db is None:
             db_config = {
-                'ENGINE': 'django.db.backends.postgresql_psycopg2',
+                'ENGINE': 'django.db.backends.postgresql',
                 'NAME': 'ambition',
                 'USER': 'postgres',
                 'PASSWORD': '',
@@ -27,13 +28,17 @@ def configure_settings():
             }
         elif test_db == 'postgres':
             db_config = {
-                'ENGINE': 'django.db.backends.postgresql_psycopg2',
+                'ENGINE': 'django.db.backends.postgresql',
                 'USER': 'postgres',
                 'NAME': 'entity',
             }
         else:
             raise RuntimeError('Unsupported test DB {0}'.format(test_db))
 
+        # Check env for db override (used for github actions)
+        if os.environ.get('DB_SETTINGS'):
+            db_config = json.loads(os.environ.get('DB_SETTINGS'))
+
         settings.configure(
             ENTITY_EMAILER_MAX_SEND_MESSAGE_TRIES=3,
             DATABASES={
@@ -65,10 +70,13 @@ def configure_settings():
                 'OPTIONS': {
                     'context_processors': [
                         'django.contrib.auth.context_processors.auth',
-                        'django.contrib.messages.context_processors.messages'
+                        'django.contrib.messages.context_processors.messages',
+                        'django.template.context_processors.request',
                     ]
                 }
             }],
             TEST_RUNNER='django_nose.NoseTestSuiteRunner',
             NOSE_ARGS=['--nocapture', '--nologcapture', '--verbosity=1'],
+            DEFAULT_AUTO_FIELD='django.db.models.AutoField',
+            SECRET_KEY='*',
         )
diff --git a/setup.py b/setup.py
index bee6cea..8f012ee 100644
--- a/setup.py
+++ b/setup.py
@@ -34,6 +34,7 @@ def get_requirements(requirements_file):
         if not r.startswith('#') and not r.startswith('-')
     ]
 
+
 setup(
     name='django-entity-emailer',
     version=get_version(),
@@ -46,16 +47,17 @@ def get_requirements(requirements_file):
     packages=find_packages(),
     classifiers=[
         'Programming Language :: Python',
-        'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9',
         'Intended Audience :: Developers',
         'License :: OSI Approved :: MIT License',
         'Operating System :: OS Independent',
         'Framework :: Django',
-        'Framework :: Django :: 2.2',
-        'Framework :: Django :: 3.0',
-        'Framework :: Django :: 3.1',
+        'Framework :: Django :: 3.2',
+        'Framework :: Django :: 4.0',
+        'Framework :: Django :: 4.1',
+        'Framework :: Django :: 4.2',
     ],
     license='MIT',
     install_requires=get_requirements('requirements.txt'),