diff --git a/setup.cfg b/setup.cfg
index 3eac929..6638b6a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,49 @@
-[bdist_wheel]
-universal = 1
+[metadata]
+name = sprockets.mixins.mediatype
+version = attr: sprockets.mixins.mediatype.__version__
+description = A mixin for reporting handling content-type/accept headers.
+long_description = file: README.rst
+long_description_content_type = text/x-rst; charset=UTF-8
+license = BSD 3-Clause License
+license_file = LICENSE
+home_page = https://github.com/sprockets/sprockets.mixins.mediatype
+author = AWeber Communications
+author_email = api@aweber.com
+project_urls =
+    Changelog = https://sprocketsmixinsmedia-type.readthedocs.io/en/latest/history.html
+    Documentation = https://sprocketsmixinsmedia-type.readthedocs.io
+    Download = https://pypi.org/project/sprockets.mixins.mediatype/
+    Source = https://github.com/sprockets/sprockets.mixins.mediatype
+classifiers =
+	Development Status :: 5 - Production/Stable
+	Intended Audience :: Developers
+	License :: OSI Approved :: BSD License
+	Natural Language :: English
+	Operating System :: OS Independent
+	Programming Language :: Python :: 3
+	Programming Language :: Python :: 3.7
+	Programming Language :: Python :: 3.8
+	Programming Language :: Python :: 3.9
+	Programming Language :: Python :: Implementation :: CPython
+	Topic :: Software Development :: Libraries
+	Topic :: Software Development :: Libraries :: Python Modules
+
+[options]
+install_requires =
+	ietfparse>=1.5.1,<2
+	tornado>=5,<7
+
+[options.extras_require]
+msgpack =
+	u-msgpack-python>=2.5.0,<3
+testing =
+	coverage==5.5
+	flake8==3.9.2
+dev =
+	coverage==5.5
+	flake8==3.9.2
+	tox==3.24.3
+
 
 [build_sphinx]
 fresh-env = 1
diff --git a/setup.py b/setup.py
index f6b5b87..02ea4f0 100755
--- a/setup.py
+++ b/setup.py
@@ -1,56 +1,10 @@
 #!/usr/bin/env python
-import pathlib
+import pkg_resources
 import setuptools
 
-from sprockets.mixins import mediatype
+dist = pkg_resources.get_distribution('setuptools')
+setup_version = tuple(int(c) for c in dist.version.split('.')[:3])
+if setup_version < (42, 0):
+    raise ImportError('Please upgrade setuptools')
 
-REPO_DIR = pathlib.Path(__name__).parent
-
-
-def read_requirements(name):
-    requirements = []
-    for req_line in REPO_DIR.joinpath(name).read_text().split('\n'):
-        req_line = req_line.strip()
-        if '#' in req_line:
-            req_line = req_line[0:req_line.find('#')].strip()
-        if req_line.startswith('-r'):
-            req_line = req_line[2:].strip()
-            requirements.extend(read_requirements(req_line))
-        else:
-            requirements.append(req_line)
-    return requirements
-
-
-setuptools.setup(
-    name='sprockets.mixins.mediatype',
-    version=mediatype.__version__,
-    description='A mixin for reporting handling content-type/accept headers',
-    long_description=REPO_DIR.joinpath('README.rst').read_text(),
-    url='https://github.com/sprockets/sprockets.mixins.mediatype',
-    author='AWeber Communications',
-    author_email='api@aweber.com',
-    license='BSD',
-    classifiers=[
-        'Development Status :: 5 - Production/Stable',
-        'Intended Audience :: Developers',
-        'License :: OSI Approved :: BSD License',
-        'Natural Language :: English',
-        'Operating System :: OS Independent',
-        'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.7',
-        'Programming Language :: Python :: 3.8',
-        'Programming Language :: Python :: 3.9',
-        'Programming Language :: Python :: Implementation :: CPython',
-        'Topic :: Software Development :: Libraries',
-        'Topic :: Software Development :: Libraries :: Python Modules'
-    ],
-    packages=setuptools.find_packages(),
-    install_requires=read_requirements('requires/installation.txt'),
-    tests_require=read_requirements('requires/testing.txt'),
-    extras_require={
-        'msgpack': ['u-msgpack-python>=2.5.0,<3']
-    },
-    namespace_packages=['sprockets', 'sprockets.mixins'],
-    test_suite='nose.collector',
-    python_requires='>=3.7',
-    zip_safe=False)
+setuptools.setup()
diff --git a/sprockets/mixins/mediatype/__init__.py b/sprockets/mixins/mediatype/__init__.py
index c53fec5..0cdf763 100644
--- a/sprockets/mixins/mediatype/__init__.py
+++ b/sprockets/mixins/mediatype/__init__.py
@@ -1,29 +1,15 @@
-"""
-sprockets.mixins.mediatype
-
-"""
+"""sprockets.mixins.mediatype"""
 try:
     from .content import (ContentMixin, ContentSettings,
                           add_binary_content_type, add_text_content_type,
                           set_default_content_type)
 except ImportError as error:  # noqa: F841  # pragma no cover
-    def _error_closure(*args, **kwargs):
-        raise error  # noqa: F821
-
-    class ErrorClosureClass(object):
-        def __init__(self, *args, **kwargs):
-            raise error  # noqa: F821
-
-    ContentMixin = ErrorClosureClass
-    ContentSettings = ErrorClosureClass
-    add_binary_content_type = _error_closure
-    add_text_content_type = _error_closure
-    set_default_content_type = _error_closure
+    import warnings
+    warnings.warn(
+        'Missing runtime requirements for sprockets.mixins.mediatype',
+        UserWarning)
 
 
 version_info = (3, 0, 4)
-__version__ = '.'.join(str(x) for x in version_info)
-
-__all__ = ['ContentMixin', 'ContentSettings', 'add_binary_content_type',
-           'add_text_content_type', 'set_default_content_type',
-           'version_info', '__version__']
+version = '.'.join(str(x) for x in version_info)
+__version__ = version  # compatibility