diff --git a/requirements.txt b/requirements.txt
index 11e7b771e..b70a8018f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,5 +16,5 @@ pytest-asyncio
 pytest-mock
 pytest-recording
 pyfakefs
-aenum==3.1.11
+aenum
 pydash
diff --git a/tests/integration/test_org_it.py b/tests/integration/test_org_it.py
index 23c46b85c..c8882176e 100644
--- a/tests/integration/test_org_it.py
+++ b/tests/integration/test_org_it.py
@@ -81,7 +81,7 @@ async def test_get_org_contact_types(self, fs):
     @pytest.mark.asyncio
     async def test_get_org_contact_user(self, fs):
         client = MockOktaClient(fs)
-        contact_type = OrgContactType('BILLING')
+        contact_type = OrgContactType.BILLING.value
         org_contact_user, _, err = await client.get_org_contact_user(contact_type)
         assert err is None
         assert isinstance(org_contact_user, OrgContactUser)
@@ -91,11 +91,11 @@ async def test_get_org_contact_user(self, fs):
     @pytest.mark.asyncio
     async def test_update_org_contact_user(self, fs):
         client = MockOktaClient(fs)
-        contact_type = OrgContactType('BILLING')
+        contact_type = OrgContactType.BILLING.value
         org_contact_user, _, err = await client.get_org_contact_user(contact_type)
         assert err is None
 
-        new_contact_type = OrgContactType('TECHNICAL')
+        new_contact_type = OrgContactType.TECHNICAL.value
         try:
             updated_user, _, err = await client.update_org_contact_user(new_contact_type,
                                                                         UserIdString({'userId': org_contact_user.user_id}))
diff --git a/tests/integration/test_subscription_it.py b/tests/integration/test_subscription_it.py
index f9340765c..370e89636 100644
--- a/tests/integration/test_subscription_it.py
+++ b/tests/integration/test_subscription_it.py
@@ -26,23 +26,23 @@ async def test_list_role_subsription(self, fs):
     async def test_get_role_subscription_by_notification_type(self, fs):
         # Instantiate Mock Client
         client = MockOktaClient(fs)
-        notification_type = models.NotificationType('OKTA_ISSUE')
+        notification_type = models.NotificationType.OKTA_ISSUE.value
         resp, _, err = await client.get_role_subscription_by_notification_type('SUPER_ADMIN', notification_type)
         assert isinstance(resp, models.Subscription)
-        assert resp.notification_type == models.NotificationType('OKTA_ISSUE')
+        assert resp.notification_type == models.NotificationType.OKTA_ISSUE.value
 
     @pytest.mark.vcr()
     @pytest.mark.asyncio
     async def test_subscribe_unsubscribe_role_by_notification_type(self, fs):
         # Instantiate Mock Client
         client = MockOktaClient(fs)
-        notification_type = models.NotificationType('OKTA_ISSUE')
+        notification_type = models.NotificationType.OKTA_ISSUE.value
         _, err = await client.subscribe_role_subscription_by_notification_type('SUPER_ADMIN', notification_type)
         assert err is None
 
         resp, _, err = await client.get_role_subscription_by_notification_type('SUPER_ADMIN', notification_type)
         assert isinstance(resp, models.Subscription)
-        assert resp.notification_type == models.NotificationType('OKTA_ISSUE')
+        assert resp.notification_type == models.NotificationType.OKTA_ISSUE.value
         assert resp.status == models.SubscriptionStatus('SUBSCRIBED')
 
         try:
@@ -50,7 +50,7 @@ async def test_subscribe_unsubscribe_role_by_notification_type(self, fs):
             assert err is None
             resp, _, err = await client.get_role_subscription_by_notification_type('SUPER_ADMIN', notification_type)
             assert isinstance(resp, models.Subscription)
-            assert resp.notification_type == models.NotificationType('OKTA_ISSUE')
+            assert resp.notification_type == models.NotificationType.OKTA_ISSUE.value
             assert resp.status == models.SubscriptionStatus('UNSUBSCRIBED')
 
         finally:
@@ -68,17 +68,17 @@ async def test_subscribe_unsubscribe_user(self, fs):
         assert err is None
         user = users[0]
 
-        notification_type = models.NotificationType('OKTA_ISSUE')
+        notification_type = models.NotificationType.OKTA_ISSUE.value
         _, err = await client.subscribe_user_subscription_by_notification_type(user.id, notification_type)
         assert err is None
 
         resp, _, err = await client.get_user_subscription_by_notification_type(user.id, notification_type)
-        assert resp.notification_type == models.NotificationType('OKTA_ISSUE')
+        assert resp.notification_type == models.NotificationType.OKTA_ISSUE.value
         assert resp.status == models.SubscriptionStatus('SUBSCRIBED')
 
         _, err = await client.unsubscribe_user_subscription_by_notification_type(user.id, notification_type)
         assert err is None
 
         resp, _, err = await client.get_user_subscription_by_notification_type(user.id, notification_type)
-        assert resp.notification_type == models.NotificationType('OKTA_ISSUE')
+        assert resp.notification_type == models.NotificationType.OKTA_ISSUE.value
         assert resp.status == models.SubscriptionStatus('UNSUBSCRIBED')