diff --git a/.github/workflows/code_quality.yml b/.github/workflows/code_quality.yml
index fecc132..131393b 100644
--- a/.github/workflows/code_quality.yml
+++ b/.github/workflows/code_quality.yml
@@ -17,9 +17,7 @@ jobs:
     strategy:
       matrix:
         toxenv:
-          - isort
-          - black
-          # - flake8
+          - ruff
           - docs
     steps:
       - uses: actions/checkout@v4
diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 1ee73cc..0c1045f 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -23,8 +23,8 @@ checks:
 * Pull requests must be accompanied by tests. We use ``pytest`` and prefer using this
   testing style over Django's ``django.test.TestCase``.
 * Ideally, documentation updates are included in a pull request.
-* Imports are sorted using ``isort``, while code is formatted using ``black``. There
-  are tox environments and CI checks in place to check/enforce this.
+* Code formatting and linting is done with ``ruff``. There are tox environments and CI
+  checks in place to check/enforce this.
 * Follow Django's code style where possible.
 * Keep commits atomic - one commit should only concern one topic. Bugfixes typically
   have one commit for the regression test and one commit with the fix.
@@ -100,8 +100,8 @@ or to build the full test matrix
 
 .. code-block:: bash
 
-   black .
-   isort .
+   ruff format .
+   ruff check --fix .
 
 Should be sufficient. Consider using a pre-commit hook to automate this.
 
diff --git a/README.md b/README.md
index 372a269..7fd0def 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Manage cookie information and let visitors give or reject consent for them.
 ![License](https://img.shields.io/pypi/l/django-cookie-consent)
 [![Build status][badge:GithubActions:CI]][GithubActions:CI]
 [![Code Quality][badge:GithubActions:CQ]][GithubActions:CQ]
-[![Code style: black][badge:black]][black]
+[![Code style: ruff][badge:ruff]][ruff]
 [![Test coverage][badge:codecov]][codecov]
 [![Documentation][badge:docs]][docs]
 
@@ -36,8 +36,8 @@ from the `docs` directory in this repository.
 [badge:GithubActions:CI]: https://github.com/django-commons/django-cookie-consent/workflows/Run%20CI/badge.svg
 [GithubActions:CQ]: https://github.com/django-commons/django-cookie-consent/actions?query=workflow%3A%22Code+quality+checks%22
 [badge:GithubActions:CQ]: https://github.com/django-commons/django-cookie-consent/workflows/Code%20quality%20checks/badge.svg
-[black]: https://github.com/psf/black
-[badge:black]: https://img.shields.io/badge/code%20style-black-000000.svg
+[ruff]: https://github.com/astral-sh/ruff
+[badge:ruff]: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json
 [codecov]: https://codecov.io/gh/django-commons/django-cookie-consent
 [badge:codecov]: https://codecov.io/gh/django-commons/django-cookie-consent/branch/master/graph/badge.svg
 [docs]: https://django-cookie-consent.readthedocs.io/en/latest/?badge=latest
diff --git a/cookie_consent/admin.py b/cookie_consent/admin.py
index 9aef7bb..c7e6e0f 100644
--- a/cookie_consent/admin.py
+++ b/cookie_consent/admin.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 from django.contrib import admin
 
 from .conf import settings
diff --git a/cookie_consent/cache.py b/cookie_consent/cache.py
index 9c61fb8..d5c645b 100644
--- a/cookie_consent/cache.py
+++ b/cookie_consent/cache.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 from django.core.cache import caches
 
 from .conf import settings
diff --git a/cookie_consent/conf.py b/cookie_consent/conf.py
index 08bcd3a..4e23d48 100644
--- a/cookie_consent/conf.py
+++ b/cookie_consent/conf.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 from django.conf import settings  # NOQA
 
 from appconf import AppConf
diff --git a/cookie_consent/middleware.py b/cookie_consent/middleware.py
index 945d142..e5f0353 100644
--- a/cookie_consent/middleware.py
+++ b/cookie_consent/middleware.py
@@ -1,12 +1,9 @@
-# -*- coding: utf-8 -*-
-from typing import Optional
-
 from .cache import all_cookie_groups
 from .conf import settings
 from .util import get_cookie_dict_from_request, is_cookie_consent_enabled
 
 
-def _should_delete_cookie(group_version: Optional[str]) -> bool:
+def _should_delete_cookie(group_version: str | None) -> bool:
     # declined after it was accepted (and set) before
     if group_version == settings.COOKIE_CONSENT_DECLINE:
         return True
diff --git a/cookie_consent/migrations/0001_initial.py b/cookie_consent/migrations/0001_initial.py
index 06f893f..e165f4a 100644
--- a/cookie_consent/migrations/0001_initial.py
+++ b/cookie_consent/migrations/0001_initial.py
@@ -68,7 +68,8 @@ class Migration(migrations.Migration):
                         validators=[
                             django.core.validators.RegexValidator(
                                 re.compile("^[-_a-zA-Z0-9]+$"),
-                                "Enter a valid 'varname' consisting of letters, numbers, underscores or hyphens.",
+                                "Enter a valid 'varname' consisting of letters, "
+                                "numbers, underscores or hyphens.",
                                 "invalid",
                             )
                         ],
diff --git a/cookie_consent/migrations/0003_alter_cookiegroup_varname.py b/cookie_consent/migrations/0003_alter_cookiegroup_varname.py
index 96a62d8..532761c 100644
--- a/cookie_consent/migrations/0003_alter_cookiegroup_varname.py
+++ b/cookie_consent/migrations/0003_alter_cookiegroup_varname.py
@@ -7,7 +7,6 @@
 
 
 class Migration(migrations.Migration):
-
     dependencies = [
         ("cookie_consent", "0002_auto__add_logitem"),
     ]
@@ -22,7 +21,8 @@ class Migration(migrations.Migration):
                 validators=[
                     django.core.validators.RegexValidator(
                         re.compile("^[-_a-zA-Z0-9]+$"),
-                        "Enter a valid 'varname' consisting of letters, numbers, underscores or hyphens.",
+                        "Enter a valid 'varname' consisting of letters, numbers, "
+                        "underscores or hyphens.",
                         "invalid",
                     )
                 ],
diff --git a/cookie_consent/migrations/0004_cookie_natural_key.py b/cookie_consent/migrations/0004_cookie_natural_key.py
index 6dfa54a..7bb5a7e 100644
--- a/cookie_consent/migrations/0004_cookie_natural_key.py
+++ b/cookie_consent/migrations/0004_cookie_natural_key.py
@@ -4,7 +4,6 @@
 
 
 class Migration(migrations.Migration):
-
     dependencies = [
         ("cookie_consent", "0003_alter_cookiegroup_varname"),
     ]
diff --git a/cookie_consent/models.py b/cookie_consent/models.py
index c9a66ba..cf96e25 100644
--- a/cookie_consent/models.py
+++ b/cookie_consent/models.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 import re
 from typing import TypedDict
 
@@ -144,7 +143,7 @@ class Meta:
         ordering = ["-created"]
 
     def __str__(self):
-        return "%s %s%s" % (self.name, self.domain, self.path)
+        return f"{self.name} {self.domain}{self.path}"
 
     @clear_cache_after
     def save(self, *args, **kwargs):
@@ -161,7 +160,8 @@ def natural_key(self):
 
     @property
     def varname(self):
-        return "%s=%s:%s" % (self.cookiegroup.varname, self.name, self.domain)
+        group_varname = self.cookiegroup.varname
+        return f"{group_varname}={self.name}:{self.domain}"
 
     def get_version(self):
         return self.created.isoformat()
@@ -185,10 +185,10 @@ class LogItem(models.Model):
     version = models.CharField(_("Version"), max_length=32)
     created = models.DateTimeField(_("Created"), auto_now_add=True, blank=True)
 
-    def __str__(self):
-        return "%s %s" % (self.cookiegroup.name, self.version)
-
     class Meta:
         verbose_name = _("Log item")
         verbose_name_plural = _("Log items")
         ordering = ["-created"]
+
+    def __str__(self):
+        return f"{self.cookiegroup.name} {self.version}"
diff --git a/cookie_consent/templatetags/__init__.py b/cookie_consent/templatetags/__init__.py
index faa18be..4265cc3 100644
--- a/cookie_consent/templatetags/__init__.py
+++ b/cookie_consent/templatetags/__init__.py
@@ -1,2 +1 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
diff --git a/cookie_consent/templatetags/cookie_consent_tags.py b/cookie_consent/templatetags/cookie_consent_tags.py
index 6ecb5a4..8ae23d9 100644
--- a/cookie_consent/templatetags/cookie_consent_tags.py
+++ b/cookie_consent/templatetags/cookie_consent_tags.py
@@ -97,6 +97,7 @@ def get_accept_cookie_groups_cookie_string(request, cookie_groups):  # pragma: n
         "Cookie string template tags for JS are deprecated and will be removed "
         "in django-cookie-consent 1.0",
         DeprecationWarning,
+        stacklevel=1,
     )
     cookie_dic = get_cookie_dict_from_request(request)
     for cookie_group in cookie_groups:
@@ -113,6 +114,7 @@ def get_decline_cookie_groups_cookie_string(request, cookie_groups):
         "Cookie string template tags for JS are deprecated and will be removed "
         "in django-cookie-consent 1.0",
         DeprecationWarning,
+        stacklevel=1,
     )
     cookie_dic = get_cookie_dict_from_request(request)
     for cookie_group in cookie_groups:
@@ -133,12 +135,14 @@ def js_type_for_cookie_consent(request, varname, cookie=None):
         alert("Social cookie accepted");
       </script>
     """
-    # This approach doesn't work with page caches and/or strict Content-Security-Policies
-    # (unless you use nonces, which again doesn't work with aggressive page caching).
+    # This approach doesn't work with page caches and/or strict
+    # Content-Security-Policies (unless you use nonces, which again doesn't work with
+    # aggressive page caching).
     warnings.warn(
         "Template tags for use in/with JS are deprecated and will be removed "
         "in django-cookie-consent 1.0",
         DeprecationWarning,
+        stacklevel=1,
     )
     enabled = is_cookie_consent_enabled(request)
     if not enabled:
@@ -162,6 +166,12 @@ def accepted_cookies(request):
         {{ request|accepted_cookies }}
 
     """
+    warnings.warn(
+        "The 'accepted_cookies' template filter is deprecated and will be removed"
+        "in django-cookie-consent 1.0.",
+        DeprecationWarning,
+        stacklevel=1,
+    )
     return [c.varname for c in get_accepted_cookies(request)]
 
 
diff --git a/cookie_consent/urls.py b/cookie_consent/urls.py
index fae8d04..6c89b2f 100644
--- a/cookie_consent/urls.py
+++ b/cookie_consent/urls.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 from django.urls import path, re_path
 from django.views.decorators.csrf import csrf_exempt
 
diff --git a/cookie_consent/util.py b/cookie_consent/util.py
index b50970f..7f5b8e7 100644
--- a/cookie_consent/util.py
+++ b/cookie_consent/util.py
@@ -1,7 +1,5 @@
-# -*- coding: utf-8 -*-
 import datetime
 import logging
-from typing import Dict, Union
 
 from .cache import all_cookie_groups, get_cookie, get_cookie_group
 from .conf import settings
@@ -13,7 +11,7 @@
 KEY_VALUE_SEP = "="
 
 
-def parse_cookie_str(cookie: str) -> Dict[str, str]:
+def parse_cookie_str(cookie: str) -> dict[str, str]:
     if not cookie:
         return {}
 
@@ -171,7 +169,7 @@ def are_all_cookies_accepted(request):
     )
 
 
-def _get_cookie_groups_by_state(request, state: Union[bool, None]):
+def _get_cookie_groups_by_state(request, state: bool | None):
     return [
         cookie_group
         for cookie_group in get_cookie_groups()
@@ -219,7 +217,7 @@ def get_cookie_string(cookie_dic):
     expires = datetime.datetime.now() + datetime.timedelta(
         seconds=settings.COOKIE_CONSENT_MAX_AGE
     )
-    cookie_str = "%s=%s; expires=%s; path=/" % (
+    cookie_str = "{}={}; expires={}; path=/".format(
         settings.COOKIE_CONSENT_NAME,
         dict_to_cookie_str(cookie_dic),
         expires.strftime("%a, %d %b %Y %H:%M:%S GMT"),
@@ -239,5 +237,5 @@ def get_accepted_cookies(request):
             continue
         for cookie in cookie_group.cookie_set.all():
             if version >= cookie.get_version():
-                accepted_cookies.append(cookie)
+                accepted_cookies.append(cookie)  # noqa: PERF401
     return accepted_cookies
diff --git a/cookie_consent/views.py b/cookie_consent/views.py
index b756f23..aae3cf6 100644
--- a/cookie_consent/views.py
+++ b/cookie_consent/views.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 from django.contrib.auth.views import RedirectURLMixin
 from django.core.exceptions import SuspiciousOperation
 from django.http import HttpRequest, HttpResponse, HttpResponseRedirect, JsonResponse
diff --git a/docs/conf.py b/docs/conf.py
index e01207b..eb4dc9d 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 import os
 import sys
 from pathlib import Path
@@ -14,7 +13,7 @@
 
 django.setup()
 
-from cookie_consent import __version__  # isort:skip
+from cookie_consent import __version__  # noqa: E402
 
 # -- General configuration -----------------------------------------------------
 
diff --git a/docs/index.rst b/docs/index.rst
index d59d3c4..beedd79 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -4,7 +4,7 @@ Django cookie consent
 
 Manage cookie information and let visitors give or reject consent for them.
 
-|build-status| |code-quality| |black| |coverage| |docs|
+|build-status| |code-quality| |ruff| |coverage| |docs|
 
 |python-versions| |django-versions| |pypi-version|
 
@@ -63,8 +63,8 @@ Indices and tables
      :alt: Code quality checks
      :target: https://github.com/django-commons/django-cookie-consent/actions?query=workflow%3A%22Code+quality+checks%22
 
-.. |black| image:: https://img.shields.io/badge/code%20style-black-000000.svg
-    :target: https://github.com/psf/black
+.. |ruff| image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json
+    :target: https://github.com/astral-sh/ruff
 
 .. |coverage| image:: https://codecov.io/gh/django-commons/django-cookie-consent/branch/master/graph/badge.svg
     :target: https://codecov.io/gh/django-commons/django-cookie-consent
diff --git a/pyproject.toml b/pyproject.toml
index efbd593..28a73bb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,16 +45,12 @@ Changelog = "https://github.com/django-commons/django-cookie-consent/blob/master
 [project.optional-dependencies]
 tests = [
     "pytest",
+    "pytest-cov",
     "pytest-django",
     "pytest-playwright",
     "hypothesis",
     "tox",
-    "isort",
-    "black",
-    "flake8",
-]
-coverage = [
-    "pytest-cov",
+    "ruff",
 ]
 docs = [
     "sphinx",
@@ -71,14 +67,6 @@ version = {attr = "cookie_consent.__version__"}
 include = ["cookie_consent*"]
 namespaces = true
 
-[tool.isort]
-profile = "black"
-combine_as_imports = true
-skip = ["env", ".tox", ".history", ".eggs"]
-known_django = "django"
-known_first_party="cookie_consent"
-sections=["FUTURE", "STDLIB", "DJANGO", "THIRDPARTY", "FIRSTPARTY", "LOCALFOLDER"]
-
 [tool.pytest.ini_options]
 testpaths = ["tests"]
 DJANGO_SETTINGS_MODULE = "testapp.settings"
@@ -105,3 +93,30 @@ exclude_also = [
     "\\.\\.\\.",
     "\\bpass$",
 ]
+
+[tool.ruff.lint]
+extend-select = [
+    "UP",  # pyupgrade
+    "DJ",  # django
+    "LOG", # logging
+    "G",
+    "I",   # isort
+    "E",   # pycodestyle
+    "F",   # pyflakes
+    "PERF",# perflint
+    "B",   # flake8-bugbear
+]
+
+[tool.ruff.lint.isort]
+combine-as-imports = true
+section-order = [
+    "future",
+    "standard-library",
+    "django",
+    "third-party",
+    "first-party",
+    "local-folder",
+]
+
+[tool.ruff.lint.isort.sections]
+"django" = ["django"]
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index dd2a903..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,4 +0,0 @@
-[pep8]
-[flake8]
-max-line-length=88
-exclude=env,.tox,docs
diff --git a/testapp/views.py b/testapp/views.py
index afd8b26..dc48390 100644
--- a/testapp/views.py
+++ b/testapp/views.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 from django.views.generic import TemplateView
 
 from cookie_consent.util import get_cookie_value_from_request
diff --git a/tests/test_cache.py b/tests/test_cache.py
index c3d12b1..5e5e9ea 100644
--- a/tests/test_cache.py
+++ b/tests/test_cache.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 from django.test import TestCase, override_settings
 
 from cookie_consent.cache import delete_cache, get_cookie, get_cookie_group
diff --git a/tests/test_models.py b/tests/test_models.py
index 5e51c1d..02fa462 100644
--- a/tests/test_models.py
+++ b/tests/test_models.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-8 -*-
+import string
 from copy import deepcopy
 
 from django.conf import settings
@@ -6,6 +6,9 @@
 from django.core.exceptions import ValidationError
 from django.test import TestCase, override_settings
 
+import pytest
+from hypothesis import given, strategies as st
+
 from cookie_consent.cache import CACHE_KEY, delete_cache
 from cookie_consent.models import Cookie, CookieGroup, validate_cookie_name
 
@@ -57,7 +60,8 @@ def test_bulk_delete(self):
             id=self.cookie_group.id
         ).delete()
 
-        # Deleting a CookieGroup also deletes the associated Cookies, that's why we expect a count of 2.
+        # Deleting a CookieGroup also deletes the associated Cookies, that's why we
+        # expect a count of 2.
         self.assertEqual(deleted_objs_count, 2)
         self.assertCacheNotPopulated()
 
@@ -109,16 +113,27 @@ def test_bulk_update(self):
         self.assertCacheNotPopulated()
 
 
-class ValidateCookieNameTest(TestCase):
-    def test_valid(self):
-        validate_cookie_name("_foo-bar")
-
-    def test_invalid(self):
-        invalid_names = (
-            "space inside",
-            "a!b",
-            "$",
-        )
-        for name in invalid_names:
-            with self.assertRaises(ValidationError):
-                validate_cookie_name("no spaces")
+@given(
+    name=st.text(
+        alphabet=string.ascii_letters + string.digits + "-_",
+        min_size=1,
+    )
+)
+def test_valid_cookie_name_does_not_raise(name):
+    try:
+        validate_cookie_name(name)
+    except ValidationError:
+        pytest.fail(reason=f"Expected {name} to be valid")
+
+
+@pytest.mark.parametrize(
+    "name",
+    (
+        "space inside",
+        "a!b",
+        "$",
+    ),
+)
+def test_invalid_cookie_name_raises(name: str):
+    with pytest.raises(ValidationError):
+        validate_cookie_name(name)
diff --git a/tests/test_templatetags.py b/tests/test_templatetags.py
index f01ba3c..cededad 100644
--- a/tests/test_templatetags.py
+++ b/tests/test_templatetags.py
@@ -1,12 +1,12 @@
 from textwrap import dedent
-from typing import Any, Dict, Optional
+from typing import Any
 
 from django.template import Context, Template
 
 import pytest
 
 
-def render(tpl: str, context: Optional[Dict[str, Any]] = None) -> str:
+def render(tpl: str, context: dict[str, Any] | None = None) -> str:
     template = Template(dedent(tpl).strip())
     return template.render(Context(context))
 
diff --git a/tests/test_util.py b/tests/test_util.py
index d9c4659..d763873 100644
--- a/tests/test_util.py
+++ b/tests/test_util.py
@@ -1,7 +1,5 @@
-# -*- coding: utf-8 -*-
 from datetime import datetime
 
-from django.http import parse_cookie
 from django.test import TestCase
 from django.test.client import RequestFactory
 from django.test.utils import override_settings
diff --git a/tests/test_views.py b/tests/test_views.py
index fe48a1e..dd7c13e 100644
--- a/tests/test_views.py
+++ b/tests/test_views.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 from django.test import TestCase
 from django.test.utils import override_settings
 from django.urls import reverse
diff --git a/tox.ini b/tox.ini
index 49f10c3..b619957 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,9 +2,7 @@
 envlist =
     py{310,311,312}-django{42,51,52}
     py{313}-django{51,52}
-    isort
-    black
-    ; flake8
+    ruff
     docs
 skip_missing_interpreters = true
 
@@ -52,20 +50,12 @@ commands =
    --cov --cov-report xml:reports/coverage-{envname}.xml \
    {posargs}
 
-[testenv:isort]
+[testenv:ruff]
 extras = tests
 skipsdist = True
-commands = isort --check-only --diff .
-
-[testenv:black]
-extras = tests
-skipsdist = True
-commands = black --check cookie_consent docs tests testapp
-
-[testenv:flake8]
-extras = tests
-skipsdist = True
-commands = flake8 .
+commands =
+    ruff check --output-format=github .
+    ruff format --check
 
 [testenv:docs]
 basepython=python