diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 08ad630..67f11a8 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       # all supported django version on lowest/highest supported python
       # see https://www.djangoproject.com/download/#supported-versions
-      # and https://docs.djangoproject.com/en/4.2/faq/install/#what-python-version-can-i-use-with-django
+      # and https://docs.djangoproject.com/en/5.0/faq/install/#what-python-version-can-i-use-with-django
       matrix:
         include:
           - { django: "4.2", python: "3.8" }
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 731afc8..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,134 +0,0 @@
-language: python
-
-python:
-  - "2.7"
-  - "3.4"
-  - "3.5"
-  - "3.6"
-  - "3.7"
-  - "3.8"
-env:
-  - DJANGO_VERSION='Django>=1.4,<1.5'
-  - DJANGO_VERSION='Django>=1.5,<1.6'
-  - DJANGO_VERSION='Django>=1.6,<1.7'
-  - DJANGO_VERSION='Django>=1.7,<1.8'
-  - DJANGO_VERSION='Django>=1.8,<1.9'
-  - DJANGO_VERSION='Django>=1.9,<1.10'
-  - DJANGO_VERSION='Django>=1.10,<1.11'
-  - DJANGO_VERSION='Django>=1.11,<2.0'
-  - DJANGO_VERSION='Django>=2.0,<2.1'
-  - DJANGO_VERSION='Django>=2.1,<2.2'
-  - DJANGO_VERSION='Django>=2.2,<3.0'
-  - DJANGO_VERSION='Django>=3.0'
-  - DJANGO_VERSION='https://github.com/django/django/archive/master.tar.gz'
-matrix:
-  exclude:
-    - python: "2.7"
-      env: DJANGO_VERSION='https://github.com/django/django/archive/master.tar.gz'
-    - python: "2.7"
-      env: DJANGO_VERSION='Django>=2.1,<2.2'
-    - python: "2.7"
-      env: DJANGO_VERSION='Django>=2.2,<3.0'
-    - python: "2.7"
-      env: DJANGO_VERSION='Django>=3.0'
-    - python: "2.7"
-      env: DJANGO_VERSION='Django>=2.0,<2.1'
-    - python: "2.7"
-      env: DJANGO_VERSION='Django>=1.6,<1.7'
-    - python: "3.4"
-      env: DJANGO_VERSION='Django>=1.4,<1.5'
-    - python: "3.4"
-      env: DJANGO_VERSION='Django>=1.5,<1.6'
-    - python: "3.4"
-      env: DJANGO_VERSION='Django>=1.6,<1.7'
-    - python: "3.4"
-      env: DJANGO_VERSION='Django>=2.1,<2.2'
-    - python: "3.4"
-      env: DJANGO_VERSION='Django>=2.2,<3.0'
-    - python: "3.4"
-      env: DJANGO_VERSION='Django>=3.0'
-    - python: "3.4"
-      env: DJANGO_VERSION='https://github.com/django/django/archive/master.tar.gz'
-    - python: "3.5"
-      env: DJANGO_VERSION='Django>=1.4,<1.5'
-    - python: "3.5"
-      env: DJANGO_VERSION='Django>=1.5,<1.6'
-    - python: "3.5"
-      env: DJANGO_VERSION='Django>=1.6,<1.7'
-    - python: "3.5"
-      env: DJANGO_VERSION='Django>=1.7,<1.8'
-    - python: "3.5"
-      env: DJANGO_VERSION='Django>=2.1,<2.2'
-    - python: "3.5"
-      env: DJANGO_VERSION='https://github.com/django/django/archive/master.tar.gz'
-    - python: "3.5"
-      env: DJANGO_VERSION='Django>=3.0'
-    - python: "3.6"
-      env: DJANGO_VERSION='Django>=1.4,<1.5'
-    - python: "3.6"
-      env: DJANGO_VERSION='Django>=1.5,<1.6'
-    - python: "3.6"
-      env: DJANGO_VERSION='Django>=1.6,<1.7'
-    - python: "3.6"
-      env: DJANGO_VERSION='Django>=1.7,<1.8'
-    - python: "3.6"
-      env: DJANGO_VERSION='Django>=1.8,<1.9'
-    - python: "3.6"
-      env: DJANGO_VERSION='Django>=1.9,<1.10'
-    - python: "3.6"
-      env: DJANGO_VERSION='Django>=1.10,<1.11'
-    - python: "3.6"
-      env: DJANGO_VERSION='https://github.com/django/django/archive/master.tar.gz'
-    - python: "3.7"
-      env: DJANGO_VERSION='Django>=1.4,<1.5'
-    - python: "3.7"
-      env: DJANGO_VERSION='Django>=1.5,<1.6'
-    - python: "3.7"
-      env: DJANGO_VERSION='Django>=1.6,<1.7'
-    - python: "3.7"
-      env: DJANGO_VERSION='Django>=1.7,<1.8'
-    - python: "3.7"
-      env: DJANGO_VERSION='Django>=1.8,<1.9'
-    - python: "3.7"
-      env: DJANGO_VERSION='Django>=1.9,<1.10'
-    - python: "3.7"
-      env: DJANGO_VERSION='Django>=1.10,<1.11'
-    - python: "3.7"
-      env: DJANGO_VERSION='https://github.com/django/django/archive/master.tar.gz'
-    - python: "3.8"
-      env: DJANGO_VERSION='Django>=1.4,<1.5'
-    - python: "3.8"
-      env: DJANGO_VERSION='Django>=1.5,<1.6'
-    - python: "3.8"
-      env: DJANGO_VERSION='Django>=1.6,<1.7'
-    - python: "3.8"
-      env: DJANGO_VERSION='Django>=1.7,<1.8'
-    - python: "3.8"
-      env: DJANGO_VERSION='Django>=1.8,<1.9'
-    - python: "3.8"
-      env: DJANGO_VERSION='Django>=1.9,<1.10'
-    - python: "3.8"
-      env: DJANGO_VERSION='Django>=1.10,<1.11'
-    - python: "3.8"
-      env: DJANGO_VERSION='Django>=2.0,<2.1'
-    - python: "3.8"
-      env: DJANGO_VERSION='Django>=2.1,<2.2'
-
-install:
-  - pip install -q $DJANGO_VERSION
-  - pip install tox coveralls flake8
-
-script:
-  - coverage erase
-  - if [[ $(python -c 'import sys; print("0" if sys.version_info < (2, 7) else "1")') == "1" ]]; then flake8 --ignore=E501,W605; fi
-  - PYTHONPATH=. coverage run -p example/run_tests.py
-  - PYTHONPATH=. coverage run -p example/run_tests.py example.settings_no_debug
-after_success:
-  - coverage combine
-  - coveralls
-
-notifications:
-  email:
-    - goinnn@gmail.com
-    - blag@users.noreply.github.com
-    - tomasgarzonhervas@gmail.com
diff --git a/README.rst b/README.rst
index 5eaa059..2677123 100644
--- a/README.rst
+++ b/README.rst
@@ -1,8 +1,8 @@
 django-multiselectfield
 =======================
 
-.. image:: https://travis-ci.org/goinnn/django-multiselectfield.png?branch=master
-    :target: https://travis-ci.org/goinnn/django-multiselectfield
+.. image:: https://github.com/goinnn/django-multiselectfield/actions/workflows/tests.yaml/badge.svg
+    :target: https://github.com/goinnn/django-multiselectfield/actions/workflows/tests.yaml
 
 .. image:: https://coveralls.io/repos/goinnn/django-multiselectfield/badge.png?branch=master
     :target: https://coveralls.io/r/goinnn/django-multiselectfield
@@ -14,9 +14,9 @@ A new model field and form field. With this you can get a multiple select from a
 
 This egg is inspired by this `snippet <http://djangosnippets.org/snippets/1200/>`_.
 
-Supported Python versions: 2.7, 3.4+
+Supported Python versions: 3.8+
 
-Supported Django versions: 1.4-2.0+
+Supported Django versions: 4.2+
 
 Installation
 ============
@@ -116,15 +116,9 @@ Django REST Framework comes with a ``MultipleChoiceField`` that works perfectly
 Known Bugs and Limitations
 ==========================
 
-All tests pass on Django 1.4, 1.5, and 1.8+, so if you can, use a modern version of Django. However, if you must use Django 1.6 or 1.7 there are two known issues you will need to be aware of:
+1. As of 0.1.13 ``MultiSelectFormField`` requires a `flat_choices` attribute
 
-1. `Named groups <https://github.com/goinnn/django-multiselectfield/pull/30#issue-52149983>`_ do not render properly in Django 1.6. The workaround is to manually render the field in your form or use a custom widget. If your workaround is suitably generic, please submit a pull request with it.
-
-2. Only in Django 1.6 and 1.7, due to `Django bug #9619 <https://code.djangoproject.com/ticket/9619>`_, passing a MultiSelectField to ``values()`` or ``values_list()`` will return the database representation of the field (a string of comma-separated values). The workaround is to manually call ``.split(',')`` on the result.
-
-   The Django bug was introduced in Django 1.6 and is fixed in Django 1.8 and onward, so ``values()`` and ``values_list()`` return a vanilla Python list of values for Django <= 1.5 and Django >= 1.8.
-
-   See `issue #40 <https://github.com/goinnn/django-multiselectfield/issues/40>`_ for discussion about this bug.
+   See `issue #155 <https://github.com/goinnn/django-multiselectfield/issues/155>`_ for discussion about this bug.
 
 
 Development
@@ -145,6 +139,6 @@ There is a fully configured example project in the `example directory <https://g
 
 .. code-block:: bash
 
-    python manage.py migrate  # or python manage.py syncdb --noinput
+    python manage.py migrate
     python manage.py loaddata app_data
     python manage.py runserver
diff --git a/setup.py b/setup.py
index 5b62bf7..0a4acc9 100644
--- a/setup.py
+++ b/setup.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Copyright (c) 2012 by Pablo Martín <goinnn@gmail.com>
 #
 # This program is free software: you can redistribute it and/or modify
@@ -41,6 +40,7 @@ def read(*rnames):
         'Development Status :: 4 - Beta',
         'Framework :: Django',
         'License :: OSI Approved :: GNU Library or Lesser General Public License (LGPL)',
+        'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
@@ -51,14 +51,8 @@ def read(*rnames):
     url='https://github.com/goinnn/django-multiselectfield',
     packages=find_packages(),
     include_package_data=True,
-    tests_require=[
-        'django>=1.4',
-        'tox',
-        'coverage',
-        'flake8',
-    ],
     install_requires=[
-        'django>=1.4',
+        'django>=4.2',
     ],
     zip_safe=False,
 )
diff --git a/tox.ini b/tox.ini
index db8d4f5..89f9d57 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,17 +1,15 @@
 [tox]
 envlist =
-    python{36,37,38,39,310}-django32,
-    python{38,39,310}-django40,
-    python{38,39,310,311}-django41,
     python{38,39,310,311,312}-django42,
     python{310,311,312}-django50
+    python{310,311,312}-django51
 
 [testenv]
 usedevelop = True
 setenv =
     PYTHONPATH=.
 commands =
-    python {envbindir}/flake8 --ignore=E501,W605
+    python {envbindir}/flake8 --ignore=E501
     python {envbindir}/coverage run -p example/run_tests.py
     python {envbindir}/coverage run -p example/run_tests.py example.settings_no_debug
 install_command =
@@ -19,11 +17,6 @@ install_command =
 deps =
     coveralls
     flake8
-    pillow
-    PyYAML
-    django32: django~=3.2
-    django40: django~=4.0
-    django41: django~=4.1
     django42: django~=4.2
     django50: django~=5.0
     django51: django>=5.1a1,<5.2