diff --git a/.gitignore b/.gitignore
index b6dc5d2..cb1ae01 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,4 @@ docs/api
 circuitpython
 /*.exp
 /*.out
+*/__version__.py
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index f8e6226..d11db8c 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -4,7 +4,7 @@
 
 repos:
 -   repo: https://github.com/psf/black
-    rev: 23.7.0
+    rev: 23.9.1
     hooks:
     - id: black
 -   repo: https://github.com/fsfe/reuse-tool
@@ -18,7 +18,7 @@ repos:
     -   id: end-of-file-fixer
     -   id: trailing-whitespace
 -   repo: https://github.com/pycqa/pylint
-    rev: v2.17.1
+    rev: v3.0.0
     hooks:
     -   id: pylint
         name: lint (examples)
diff --git a/pyproject.toml b/pyproject.toml
index f3c35ae..f0d30e6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,5 +2,48 @@
 #
 # SPDX-License-Identifier: Unlicense
 
-[tool.black]
-target-version = ['py35']
+[build-system]
+requires = [
+    "setuptools",
+    "wheel",
+    "setuptools-scm",
+]
+
+[project]
+name = "circuitpython-jepler-udecimal"
+description = "Reduced version of the decimal library for CircuitPython"
+version = "0.0.0+auto.0"
+readme = "README.rst"
+authors = [
+    {name = "Jeff Epler", email = "jepler@gmail.com"}
+]
+urls = { Source = "https://github.com/jepler/Jepler_CircuitPython_udecimal", Documentation = "https://jepler-udecimal.readthedocs.io/en/latest/api/jepler_udecimal/index.html", Tracker = "https://github.com/jepler/Jepler_CircuitPython_udecimal/issues" }
+#    "Pull Requests" = "https://github.com/jepler/Jepler_CircuitPython_udecimal/pulls",
+keywords = [
+    "adafruit",
+    "blinka",
+    "circuitpython",
+    "micropython",
+    "udecimal",
+    "numeric",
+    "helper",
+    "arbitraryprecision",
+    "math",
+]
+license = {text = "MIT"}
+classifiers = [
+    "Intended Audience :: Developers",
+    "Topic :: Software Development :: Libraries",
+    "Topic :: Software Development :: Embedded Systems",
+    "Topic :: System :: Hardware",
+    "License :: OSI Approved :: MIT License",
+    "License :: OSI Approved :: Python Software Foundation License",
+    "Programming Language :: Python :: 3",
+]
+dynamic = ["dependencies", "optional-dependencies"]
+
+
+[tool.setuptools]
+packages=['jepler_udecimal']
+[tool.setuptools_scm]
+write_to = "jepler_udecimal/__version__.py"
diff --git a/setup.py b/setup.py
deleted file mode 100644
index a8fbd90..0000000
--- a/setup.py
+++ /dev/null
@@ -1,65 +0,0 @@
-# SPDX-FileCopyrightText: 2017 Scott Shawcroft, written for Adafruit Industries
-# SPDX-FileCopyrightText: Copyright (c) 2020 jepler for Unpythonic Networks
-#
-# SPDX-License-Identifier: MIT
-
-"""A setuptools based setup module.
-
-See:
-https://packaging.python.org/en/latest/distributing.html
-https://github.com/pypa/sampleproject
-"""
-
-from setuptools import setup, find_packages
-
-# To use a consistent encoding
-from codecs import open
-from os import path
-
-here = path.abspath(path.dirname(__file__))
-
-# Get the long description from the README file
-with open(path.join(here, "README.rst"), encoding="utf-8") as f:
-    long_description = f.read()
-
-setup(
-    name="jepler-circuitpython-udecimal",
-    use_scm_version=True,
-    setup_requires=["setuptools_scm"],
-    description="Reduced version of the decimal library for CircuitPython",
-    long_description=long_description,
-    long_description_content_type="text/x-rst",
-    # The project's main homepage.
-    url="https://github.com/jepler/Jepler_CircuitPython_udecimal",
-    project_urls={
-        "Source": "https://github.com/jepler/Jepler_CircuitPython_udecimal",
-        "Documentation": "https://jepler-udecimal.readthedocs.io/en/latest/api/jepler_udecimal/index.html",
-        "Tracker": "https://github.com/jepler/Jepler_CircuitPython_udecimal/issues",
-        "Pull Requests": "https://github.com/jepler/Jepler_CircuitPython_udecimal/pulls",
-    },
-    # Author details
-    author="Jeff Epler",
-    author_email="jepler@gmail.com",
-    install_requires=[],
-    # Choose your license
-    license="MIT",
-    # See https://pypi.python.org/pypi?%3Aaction=list_classifiers
-    classifiers=[
-        "Development Status :: 3 - Alpha",
-        "Intended Audience :: Developers",
-        "Topic :: Software Development :: Libraries",
-        "License :: OSI Approved :: MIT License",
-        "License :: OSI Approved :: Python Software Foundation License ",
-        "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.4",
-        "Programming Language :: Python :: 3.5",
-        "Programming Language :: Python :: 3.6",
-        "Programming Language :: Python :: 3.7",
-    ],
-    # What does your project relate to?
-    keywords="adafruit blinka circuitpython micropython udecimal numeric helper "
-    "arbitraryprecision math",
-    # You can just specify the packages manually here if your project is
-    # simple. Or you can use find_packages().
-    packages=["jepler_udecimal"],
-)