diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index 000c0b2..033cc20 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -23,11 +23,8 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install flake8==3.8.4 pytest
+        pip install flake8==3.8.4 pytest tox
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
-    - name: Lint with flake8
+    - name: Lint and test
       run: |
-        python setup.py lint
-    - name: Test with pytest
-      run: |
-        python setup.py test
+        tox
diff --git a/.gitignore b/.gitignore
index 100084d..18d16bf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@
 /venv
 build/
 .vscode/settings.json
+.tox/
diff --git a/README.rst b/README.rst
index beb7f8b..7cf2c1d 100644
--- a/README.rst
+++ b/README.rst
@@ -186,10 +186,4 @@ They are the same as listed above and take the same arguments.
 Development
 ===========
 
-To run tests:
-
-``python setup.py test``
-
-To lint:
-
-``python setup.py lint``
+To run tests and the linter run ``pip install tox`` once, then ``tox``.
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 32e2565..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,2 +0,0 @@
-[flake8]
-ignore = E501 W503
diff --git a/setup.py b/setup.py
index 171c45d..0e772ef 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,6 @@
 import codecs
 import os
 from setuptools import setup, find_packages
-from setuptools.command.test import test as TestCommand, Command
 
 
 read = lambda filepath: codecs.open(filepath, 'r', 'utf-8').read()
@@ -13,49 +12,7 @@ pkgmeta = {
     '__version__': '0.11.2',
 }
 
-
-class PyTest(TestCommand):
-    def finalize_options(self):
-        TestCommand.finalize_options(self)
-        self.test_args = ['tests', '-s']
-        self.test_suite = True
-
-    def run_tests(self):
-        import pytest
-        errno = pytest.main(self.test_args)
-        raise SystemExit(errno)
-
-
-class LintCommand(Command):
-    """
-    A copy of flake8's Flake8Command
-
-    """
-    description = "Run flake8 on modules registered in setuptools"
-    user_options = []
-
-    def initialize_options(self):
-        pass
-
-    def finalize_options(self):
-        pass
-
-    def distribution_files(self):
-        if self.distribution.packages:
-            for package in self.distribution.packages:
-                yield package.replace(".", os.path.sep)
-
-        if self.distribution.py_modules:
-            for filename in self.distribution.py_modules:
-                yield "%s.py" % filename
-
-    def run(self):
-        from flake8.api.legacy import get_style_guide
-        flake8_style = get_style_guide(config_file='setup.cfg')
-        paths = self.distribution_files()
-        report = flake8_style.check_files(paths)
-        raise SystemExit(report.total_errors > 0)
-
+read = lambda filepath: codecs.open(filepath, 'r', 'utf-8').read()
 
 setup(
     name='markdownify',
@@ -69,14 +26,9 @@ setup(
     packages=find_packages(),
     zip_safe=False,
     include_package_data=True,
-    setup_requires=[
-        'flake8>=3.8,<5',
-    ],
-    tests_require=[
-        'pytest>=6.2,<7',
-    ],
     install_requires=[
-        'beautifulsoup4>=4.9,<5', 'six>=1.15,<2'
+        'beautifulsoup4>=4.9,<5',
+        'six>=1.15,<2',
     ],
     classifiers=[
         'Environment :: Web Environment',
@@ -92,10 +44,6 @@ setup(
         'Programming Language :: Python :: 3.8',
         'Topic :: Utilities'
     ],
-    cmdclass={
-        'test': PyTest,
-        'lint': LintCommand,
-    },
     entry_points={
         'console_scripts': [
             'markdownify = markdownify.main:main'
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..1e137fb
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,10 @@
+[tox]
+envlist = py38
+
+[testenv]
+deps =
+	flake8
+	pytest
+commands =
+	flake8 --ignore=E501,W503 markdownify tests
+	pytest