diff --git a/CHANGES.rst b/CHANGES.rst
index 31c59c8..e080f78 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -12,6 +12,12 @@ Changelog
 - Test pre-release of python 3.12.
   [gforcada]
 
+- Use `pyproject.toml` rather than `setup.py`.
+  [gforcada]
+
+- Switch from `setuptools` to `hatchling`.
+  [gforcada]
+
 2.1.0 (2022-12-23)
 ------------------
 
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..2d87475
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,46 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "flake8-builtins"
+version = "2.1.1.dev0"
+authors = [
+  { name="Gil Forcada Codinachs", email="gil.gnome@gmail.com" },
+]
+description = "Check for python builtins being used as variables or parameters"
+keywords = ["pep8", "flake8", "python", ]
+license = {file = "LICENSE"}
+readme = "README.rst"
+requires-python = ">=3.8"
+classifiers = [
+        "Development Status :: 5 - Production/Stable",
+        "Environment :: Console",
+        "Framework :: Flake8",
+        "Intended Audience :: Developers",
+        "License :: OSI Approved :: GNU General Public License v2 (GPLv2)",
+        "Operating System :: OS Independent",
+        "Programming Language :: Python",
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3 :: Only",
+        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: Implementation :: CPython",
+        "Programming Language :: Python :: Implementation :: PyPy",
+        "Topic :: Software Development",
+        "Topic :: Software Development :: Quality Assurance",
+]
+dependencies = ["flake8"]
+
+[project.urls]
+"Homepage" = "https://github.com/gforcada/flake8-builtins"
+"Bug Tracker" = "https://github.com/gforcada/flake8-builtins/issues"
+"Changelog" = "https://github.com/gforcada/flake8-builtins/blob/master/CHANGES.rst"
+
+[project.optional-dependencies]
+test = ["pytest"]
+
+[project.entry-points."flake8.extension"]
+A00 = "flake8_builtins:BuiltinsChecker"
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 42a613a..0000000
--- a/setup.py
+++ /dev/null
@@ -1,64 +0,0 @@
-from setuptools import setup
-
-short_description = 'Check for python builtins being used as variables or parameters.'
-
-
-def read_file(filename):
-    with open(filename) as file_obj:
-        file_contents = file_obj.read()
-    return file_contents
-
-
-long_description = f"""
-{read_file('README.rst')}
-{read_file('CHANGES.rst')}
-"""
-
-
-setup(
-    name='flake8-builtins',
-    version='2.1.1.dev0',
-    description=short_description,
-    long_description=long_description,
-    # Get more from https://pypi.org/classifiers/
-    classifiers=[
-        'Development Status :: 5 - Production/Stable',
-        'Environment :: Console',
-        'Framework :: Flake8',
-        'Intended Audience :: Developers',
-        'License :: OSI Approved :: GNU General Public License v2 (GPLv2)',
-        'Operating System :: OS Independent',
-        'Programming Language :: Python',
-        'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3 :: Only',
-        'Programming Language :: Python :: 3.8',
-        'Programming Language :: Python :: 3.9',
-        'Programming Language :: Python :: 3.10',
-        'Programming Language :: Python :: 3.11',
-        'Programming Language :: Python :: Implementation :: CPython',
-        'Programming Language :: Python :: Implementation :: PyPy',
-        'Topic :: Software Development',
-        'Topic :: Software Development :: Quality Assurance',
-    ],
-    python_requires='>=3.8',
-    keywords='pep8 flake8 python',
-    author='Gil Forcada',
-    author_email='gil.gnome@gmail.com',
-    url='https://github.com/gforcada/flake8-builtins',
-    license='GPL version 2',
-    py_modules=['flake8_builtins'],
-    include_package_data=True,
-    test_suite='run_tests',
-    zip_safe=False,
-    install_requires=[
-        'flake8',
-    ],
-    extras_require={
-        'test': [
-            'pytest',
-        ],
-    },
-    entry_points={
-        'flake8.extension': ['A00 = flake8_builtins:BuiltinsChecker'],
-    },
-)