diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..6cd8eed
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,17 @@
+[project]
+name = "surt"
+version = "0.3.1"
+description = "Sort-friendly URI Reordering Transform (SURT) python package."
+authors = [
+    {name = "rajbot", email = "raj@archive.org"}
+]
+license = {text = "GNU Affero General Public License v3"}
+readme = "README.md"
+dependencies = [
+  "six",
+  "tldextract>=2.0"
+]
+
+[build-system]
+requires = ["setuptools"]
+build-backend = "setuptools.build_meta"
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 14591c5..0000000
--- a/setup.py
+++ /dev/null
@@ -1,39 +0,0 @@
-from setuptools import setup
-from setuptools.command.test import test as TestCommand
-
-class PyTest(TestCommand):
-    def finalize_options(self):
-        TestCommand.finalize_options(self)
-        self.test_suite = True
-
-    def run_tests(self):
-        import pytest
-        import sys
-        cmdline = ' -v --cov surt tests/'
-        errcode = pytest.main(cmdline)
-        sys.exit(errcode)
-
-
-setup(name='surt',
-      version='0.3.1',
-      author='rajbot',
-      author_email='raj@archive.org',
-      classifiers=[
-        'License :: OSI Approved :: GNU Affero General Public License v3',
-      ],
-      description='Sort-friendly URI Reordering Transform (SURT) python package.',
-      long_description=open('README.rst').read(),
-      url='https://github.com/internetarchive/surt',
-      zip_safe=True,
-      install_requires=[
-          'six',
-          'tldextract>=2.0',
-      ],
-      provides=[ 'surt' ],
-      packages=[ 'surt' ],
-      scripts=[],
-      # Tests
-      tests_require=[ 'pytest', 'pytest-cov' ],
-      test_suite='',
-      cmdclass={'test': PyTest},
-     )
diff --git a/tox.ini b/tox.ini
index a92e22f..8aaf030 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,7 +6,7 @@
 [tox]
 envlist =
     py26, py27,
-    py33, py34, py35, py36
+    py33, py34, py35, py36, py312
     pypy, pypy3,
 
 [testenv]