diff --git a/.circleci/config.yml b/.circleci/config.yml
index a9aba29..f2e42e9 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -20,7 +20,7 @@ jobs:
 
             - run:
                 name: Run tests
-                command: tox -e 'py37-dj{20,21,22}'
+                command: tox -e 'py37-dj{20,21,22,30}'
                 environment:
                     DATABASE_URL: 'postgres://localizedfields:localizedfields@localhost:5432/localizedfields'
 
@@ -47,7 +47,7 @@ jobs:
 
             - run:
                 name: Run tests
-                command: tox -e 'py38-dj{20,21,22}'
+                command: tox -e 'py38-dj{20,21,22,30}'
                 environment:
                     DATABASE_URL: 'postgres://localizedfields:localizedfields@localhost:5432/localizedfields'
 
diff --git a/README.md b/README.md
index b97614b..b8d02a2 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 | :white_check_mark: | **Tests** | [![CircleCI](https://circleci.com/gh/SectorLabs/django-localized-fields/tree/master.svg?style=svg)](https://circleci.com/gh/SectorLabs/django-localized-fields/tree/master) |
 | :memo: | **License** | [![License](https://img.shields.io/:license-mit-blue.svg)](http://doge.mit-license.org) |
 | :package: | **PyPi** | [![PyPi](https://badge.fury.io/py/django-localized-fields.svg)](https://pypi.python.org/pypi/django-localized-fields) |
-| <img src="https://icon-library.net/images/django-icon/django-icon-0.jpg" width="22px" height="22px" align="center" /> | **Django Versions** | 2.0, 2.1, 2.2 |
+| <img src="https://icon-library.net/images/django-icon/django-icon-0.jpg" width="22px" height="22px" align="center" /> | **Django Versions** | 2.0, 2.1, 2.2, 3.0 |
 | <img src="http://www.iconarchive.com/download/i73027/cornmanthe3rd/plex/Other-python.ico" width="22px" height="22px" align="center" /> | **Python Versions** | 3.7, 3.8 |
 | :book: | **Documentation** | [Read The Docs](https://django-localized-fields.readthedocs.io) |
 | :warning: | **Upgrade** | [Upgrade fom v5.x](https://django-localized-fields.readthedocs.io/en/latest/releases.html#v6-0)
diff --git a/localized_fields/descriptor.py b/localized_fields/descriptor.py
index 8b4f30d..ca38011 100644
--- a/localized_fields/descriptor.py
+++ b/localized_fields/descriptor.py
@@ -1,5 +1,5 @@
 from django.conf import settings
-from django.utils import six, translation
+from django.utils import translation
 
 
 class LocalizedValueDescriptor:
@@ -57,7 +57,7 @@ class LocalizedValueDescriptor:
         return instance.__dict__[self.field.name]
 
     def __set__(self, instance, value):
-        if isinstance(value, six.string_types):
+        if isinstance(value, str):
             language = translation.get_language() or settings.LANGUAGE_CODE
             self.__get__(instance).set(
                 language, value
diff --git a/localized_fields/fields/file_field.py b/localized_fields/fields/file_field.py
index 67097ed..039c785 100644
--- a/localized_fields/fields/file_field.py
+++ b/localized_fields/fields/file_field.py
@@ -5,7 +5,6 @@ import posixpath
 from django.core.files import File
 from django.core.files.storage import default_storage
 from django.db.models.fields.files import FieldFile
-from django.utils import six
 from django.utils.encoding import force_str, force_text
 
 from localized_fields.fields import LocalizedField
@@ -56,7 +55,7 @@ class LocalizedFileValueDescriptor(LocalizedValueDescriptor):
     def __get__(self, instance, cls=None):
         value = super().__get__(instance, cls)
         for lang, file in value.__dict__.items():
-            if isinstance(file, six.string_types) or file is None:
+            if isinstance(file, str) or file is None:
                 file = self.field.value_class(instance, self.field, file, lang)
                 value.set(lang, file)
 
@@ -120,7 +119,7 @@ class LocalizedFileField(LocalizedField):
                 else:
                     # Need to convert File objects provided via a form to
                     # unicode for database insertion
-                    prep_value.set(k, six.text_type(v))
+                    prep_value.set(k, str(v))
             return super().get_prep_value(prep_value)
         return super().get_prep_value(value)
 
diff --git a/tox.ini b/tox.ini
index 865a965..37c221d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,11 +1,12 @@
 [tox]
-envlist = py37-dj{20,21,22}, py38-dj{20,21,22}
+envlist = py37-dj{20,21,22,30}, py38-dj{20,21,22,30}
 
 [testenv]
 deps =
     dj20: Django>=2.0,<2.1
     dj21: Django>=2.1,<2.2
     dj22: Django>=2.2,<2.3
+    dj30: Django>=3.0a1,<3.1
     -rrequirements/test.txt
 setenv =
     DJANGO_SETTINGS_MODULE=settings