diff --git a/.travis.yml b/.travis.yml
index d2b02b2..1499e34 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,9 @@
 language: python
 matrix:
   include:
-  - python: "3.7"
+  - python: "3.8"
     env: TOX_ENV=flake8
-  - python: "3.7"
+  - python: "3.8"
     env: TOX_ENV=check_rst
   - python: "2.7"
     env: TOX_ENV=py27-django111
@@ -20,6 +20,10 @@ matrix:
   - python: "3.6"
     env: TOX_ENV=py36-django21
   - python: "3.7"
+    env: TOX_ENV=py37-django22
+  - python: "3.8"
+    env: TOX_ENV=py38-django30
+  - python: "3.8"
     env: TOX_ENV=coverage
 cache:
   directories:
diff --git a/README.rst b/README.rst
index 3bebaff..ce70792 100644
--- a/README.rst
+++ b/README.rst
@@ -29,7 +29,7 @@ Dependencies
 
 ``django-cas-server`` depends on the following python packages:
 
-* Django >= 1.11 < 2.1
+* Django >= 1.11 <= 3.0
 * requests >= 2.4
 * requests_futures >= 0.9.5
 * lxml >= 3.4
diff --git a/cas_server/apps.py b/cas_server/apps.py
index 03afab5..29b6616 100644
--- a/cas_server/apps.py
+++ b/cas_server/apps.py
@@ -9,9 +9,14 @@
 #
 # (c) 2015-2016 Valentin Samir
 """django config module"""
-from django.utils.translation import ugettext_lazy as _
 from django.apps import AppConfig
 
+import sys
+if sys.version_info < (3, ):
+    from django.utils.translation import ugettext_lazy as _
+else:
+    from django.utils.translation import gettext_lazy as _
+
 
 class CasAppConfig(AppConfig):
     """
diff --git a/cas_server/default_settings.py b/cas_server/default_settings.py
index 8e72b54..744a6f7 100644
--- a/cas_server/default_settings.py
+++ b/cas_server/default_settings.py
@@ -12,10 +12,15 @@
 """Default values for the app's settings"""
 from django.conf import settings
 from django.templatetags.static import static
-from django.utils.translation import ugettext_lazy as _
 
 from importlib import import_module
 
+import sys
+if sys.version_info < (3, ):
+    from django.utils.translation import ugettext_lazy as _
+else:
+    from django.utils.translation import gettext_lazy as _
+
 
 try:
     #: URL to the logo showed in the up left corner on the default templates.
diff --git a/cas_server/forms.py b/cas_server/forms.py
index 107423c..5749285 100644
--- a/cas_server/forms.py
+++ b/cas_server/forms.py
@@ -13,11 +13,16 @@ from .default_settings import settings
 
 from django import forms
 from django.forms import widgets
-from django.utils.translation import ugettext_lazy as _
 
 import cas_server.utils as utils
 import cas_server.models as models
 
+import sys
+if sys.version_info < (3, ):
+    from django.utils.translation import ugettext_lazy as _
+else:
+    from django.utils.translation import gettext_lazy as _
+
 
 class BootsrapForm(forms.Form):
     """
diff --git a/cas_server/management/commands/cas_clean_federate.py b/cas_server/management/commands/cas_clean_federate.py
index 795230a..af46457 100644
--- a/cas_server/management/commands/cas_clean_federate.py
+++ b/cas_server/management/commands/cas_clean_federate.py
@@ -10,10 +10,15 @@
 #
 # (c) 2016 Valentin Samir
 from django.core.management.base import BaseCommand
-from django.utils.translation import ugettext_lazy as _
 
 from ... import models
 
+import sys
+if sys.version_info < (3, ):
+    from django.utils.translation import ugettext_lazy as _
+else:
+    from django.utils.translation import gettext_lazy as _
+
 
 class Command(BaseCommand):
     args = ''
diff --git a/cas_server/management/commands/cas_clean_sessions.py b/cas_server/management/commands/cas_clean_sessions.py
index d0c63fe..9e8db52 100644
--- a/cas_server/management/commands/cas_clean_sessions.py
+++ b/cas_server/management/commands/cas_clean_sessions.py
@@ -11,10 +11,15 @@
 # (c) 2016 Valentin Samir
 """Clean deleted sessions management command"""
 from django.core.management.base import BaseCommand
-from django.utils.translation import ugettext_lazy as _
 
 from ... import models
 
+import sys
+if sys.version_info < (3,):
+    from django.utils.translation import ugettext_lazy as _
+else:
+    from django.utils.translation import gettext_lazy as _
+
 
 class Command(BaseCommand):
     """Clean deleted sessions"""
diff --git a/cas_server/management/commands/cas_clean_tickets.py b/cas_server/management/commands/cas_clean_tickets.py
index 3111016..b2869bd 100644
--- a/cas_server/management/commands/cas_clean_tickets.py
+++ b/cas_server/management/commands/cas_clean_tickets.py
@@ -11,10 +11,15 @@
 # (c) 2016 Valentin Samir
 """Clean old trickets management command"""
 from django.core.management.base import BaseCommand
-from django.utils.translation import ugettext_lazy as _
 
 from ... import models
 
+import sys
+if sys.version_info < (3, ):
+    from django.utils.translation import ugettext_lazy as _
+else:
+    from django.utils.translation import gettext_lazy as _
+
 
 class Command(BaseCommand):
     """Clean old trickets"""
diff --git a/cas_server/models.py b/cas_server/models.py
index 657a669..607c048 100644
--- a/cas_server/models.py
+++ b/cas_server/models.py
@@ -15,9 +15,13 @@ from .default_settings import settings, SessionStore
 from django.db import models
 from django.db.models import Q
 from django.contrib import messages
-from django.utils.translation import ugettext_lazy as _
 from django.utils import timezone
-from django.utils.encoding import python_2_unicode_compatible
+try:
+    from django.utils.encoding import python_2_unicode_compatible
+    from django.utils.translation import ugettext_lazy as _
+except ImportError:
+    def python_2_unicode_compatible(f): return f
+    from django.utils.translation import gettext_lazy as _
 from django.core.mail import send_mail
 
 import re
diff --git a/cas_server/utils.py b/cas_server/utils.py
index 9f8a5af..7e9de27 100644
--- a/cas_server/utils.py
+++ b/cas_server/utils.py
@@ -18,11 +18,12 @@ from django.contrib.messages import constants as DEFAULT_MESSAGE_LEVELS
 from django.core.serializers.json import DjangoJSONEncoder
 from django.utils import timezone
 from django.core.exceptions import ValidationError
-from django.utils.translation import ugettext_lazy as _
 try:
     from django.urls import reverse
+    from django.utils.translation import gettext_lazy as _
 except ImportError:
     from django.core.urlresolvers import reverse
+    from django.utils.translation import ugettext_lazy as _
 
 import re
 import random
diff --git a/cas_server/views.py b/cas_server/views.py
index ff8d144..f1616d4 100644
--- a/cas_server/views.py
+++ b/cas_server/views.py
@@ -16,12 +16,16 @@ from django.shortcuts import render, redirect
 from django.http import HttpResponse, HttpResponseRedirect
 from django.contrib import messages
 from django.utils.decorators import method_decorator
-from django.utils.translation import ugettext as _
 from django.utils import timezone
 from django.views.decorators.csrf import csrf_exempt
 from django.middleware.csrf import CsrfViewMiddleware
 from django.views.generic import View
-from django.utils.encoding import python_2_unicode_compatible
+try:
+    from django.utils.encoding import python_2_unicode_compatible
+    from django.utils.translation import ugettext as _
+except ImportError:
+    def python_2_unicode_compatible(f): return f
+    from django.utils.translation import gettext as _
 from django.utils.safestring import mark_safe
 try:
     from django.urls import reverse
@@ -256,7 +260,7 @@ class FederateAuth(CsrfExemptView):
         self.service_url = service_url
         return CASFederateValidateUser(provider, service_url, renew=renew)
 
-    def post(self, request, provider=None):
+    def post(self, request, provider=None, *args, **kwargs):
         """
             method called on POST request
 
@@ -1395,7 +1399,7 @@ class SamlValidate(CsrfExemptView):
     ticket = None
     root = None
 
-    def post(self, request):
+    def post(self, request, *args, **kwargs):
         """
             method called on POST request on this view
 
diff --git a/requirements-dev.txt b/requirements-dev.txt
index f92821a..b793b42 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -7,6 +7,5 @@ tox>=1.8.1
 pytest>=2.6.4
 pytest-django>=2.8.0
 pytest-pythonpath>=0.3
-pytest-warnings
 pytest-cov>=2.2.1
 mock>=1
diff --git a/requirements.txt b/requirements.txt
index 95b36d9..d69cdb7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-Django >= 1.11,<2.2
+Django >= 1.11,<=3.0
 setuptools>=5.5
 requests>=2.4
 requests_futures>=0.9.5
diff --git a/setup.py b/setup.py
index 4c4af3b..905b68e 100644
--- a/setup.py
+++ b/setup.py
@@ -34,6 +34,8 @@ if __name__ == '__main__':
             'Framework :: Django :: 1.11',
             'Framework :: Django :: 2.0',
             'Framework :: Django :: 2.1',
+            'Framework :: Django :: 2.2',
+            'Framework :: Django :: 3.0',
             'Intended Audience :: Developers',
             'Intended Audience :: System Administrators',
             'License :: OSI Approved :: GNU General Public License v3 (GPLv3)',
@@ -44,6 +46,8 @@ if __name__ == '__main__':
             'Programming Language :: Python :: 3',
             'Programming Language :: Python :: 3.5',
             'Programming Language :: Python :: 3.6',
+            'Programming Language :: Python :: 3.7',
+            'Programming Language :: Python :: 3.8',
             'Topic :: Software Development :: Libraries :: Python Modules',
             'Topic :: Internet :: WWW/HTTP',
             'Topic :: Internet :: WWW/HTTP :: Dynamic Content',
@@ -58,7 +62,7 @@ if __name__ == '__main__':
         },
         keywords=['django', 'cas', 'cas3', 'server', 'sso', 'single sign-on', 'authentication', 'auth'],
         install_requires=[
-            'Django >= 1.11,<2.2', 'requests >= 2.4', 'requests_futures >= 0.9.5',
+            'Django >= 1.11,<=3.0', 'requests >= 2.4', 'requests_futures >= 0.9.5',
             'lxml >= 3.4', 'six >= 1'
         ],
         url="https://github.com/nitmir/django-cas-server",
diff --git a/tox.ini b/tox.ini
index ff5e1db..5bc8105 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,6 +9,13 @@ envlist=
     py36-django20,
     py35-django21,
     py36-django21,
+    py37-django21,
+    py36-django22,
+    py37-django22,
+    py38-django22,
+    py36-django30,
+    py37-django30,
+    py38-django30,
 
 [flake8]
 max-line-length=100
@@ -118,6 +125,47 @@ deps =
     Django>=2.1,<2.2
     {[base]deps}
 
+[testenv:py37-django21]
+basepython=python3.7
+deps =
+    Django>=2.1,<2.2
+    {[base]deps}
+
+[testenv:py36-django22]
+basepython=python3.6
+deps =
+    Django>=2.2,<3.0
+    {[base]deps}
+
+[testenv:py37-django22]
+basepython=python3.7
+deps =
+    Django>=2.2,<3.0
+    {[base]deps}
+
+[testenv:py38-django22]
+basepython=python3.8
+deps =
+    Django>=2.2,<3.0
+    {[base]deps}
+
+[testenv:py36-django30]
+basepython=python3.6
+deps =
+    Django>=3.0,<3.1
+    {[base]deps}
+
+[testenv:py37-django30]
+basepython=python3.7
+deps =
+    Django>=3.0,<3.1
+    {[base]deps}
+
+[testenv:py38-django30]
+basepython=python3.8
+deps =
+    Django>=3.0,<3.1
+    {[base]deps}
 
 
 [testenv:flake8]