diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index bd9d7e4d..c852963c 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -38,11 +38,3 @@ repos:
     hooks:
       - id: pyupgrade
         args: [--py38-plus]
-
-  - repo: local
-    hooks:
-      - id: pyproject.toml
-        name: pyproject.toml
-        language: system
-        entry: python tools/generate_pyproject.toml.py
-        files: "pyproject.toml|requirements/.*\\.txt|tools/.*pyproject.*"
diff --git a/pyproject.toml b/pyproject.toml
index 7e17b148..05137654 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,23 +1,16 @@
-################################################################################
-# DO NOT EDIT
-# AUTOGENERATED BY
-#
-#     $ python tools/generate_pyproject.toml.py
-#
-# EDIT tools/pyproject.toml.in AND RUN THAT SCRIPT.
-#
-################################################################################
-
 [build-system]
 build-backend = 'setuptools.build_meta'
-requires = ['setuptools>=61.2']
+requires = ['setuptools>=62.6']
 
 [project]
 name = 'numpydoc'
 description = 'Sphinx extension to support docstrings in Numpy format'
 readme = 'README.rst'
 requires-python = '>=3.8'
-dynamic = ['version']
+dynamic = [
+    'optional-dependencies',
+    'version',
+]
 keywords = [
     'sphinx',
     'numpy',
@@ -52,27 +45,22 @@ file = 'LICENSE.txt'
 Homepage = 'https://numpydoc.readthedocs.io'
 Source = 'https://github.com/numpy/numpydoc/'
 
-[project.optional-dependencies]
-doc = [
-    'numpy>=1.22',
-    'matplotlib>=3.5',
-    'pydata-sphinx-theme>=0.13',
-    'sphinx>=6',
-]
-test = [
-    'pytest',
-    'pytest-cov',
-    'matplotlib',
-]
-
 [project.scripts]
 validate-docstrings = 'numpydoc.hooks.validate_docstrings:main'
+
 [tool.setuptools]
 include-package-data = false
 packages = [
     'numpydoc',
     'numpydoc.hooks',
 ]
+
+[tool.setuptools.dynamic.optional-dependencies.doc]
+file = 'requirements/doc.txt'
+
+[tool.setuptools.dynamic.optional-dependencies.test]
+file = 'requirements/test.txt'
+
 [tool.setuptools.dynamic.version]
 attr = 'numpydoc.__version__'
 
@@ -84,6 +72,7 @@ numpydoc = [
     'tests/tinybuild/*.py',
     'templates/*.rst',
 ]
+
 [tool.pytest.ini_options]
 addopts = '''
 --showlocals --doctest-modules -ra --cov-report= --cov=numpydoc
diff --git a/requirements/developer.txt b/requirements/developer.txt
index 832c8cbe..ff8f63cc 100644
--- a/requirements/developer.txt
+++ b/requirements/developer.txt
@@ -1,2 +1 @@
 pre-commit>=3.3
-rtoml
diff --git a/tools/generate_pyproject.toml.py b/tools/generate_pyproject.toml.py
deleted file mode 100755
index bc7d9671..00000000
--- a/tools/generate_pyproject.toml.py
+++ /dev/null
@@ -1,52 +0,0 @@
-#!/usr/bin/env python
-
-import os
-import sys
-
-try:
-    import rtoml as toml
-except ImportError:
-    print("Please install `rtoml` first: `pip install rtoml`")
-    sys.exit(1)
-
-
-if not os.path.isfile("pyproject.toml"):
-    print("Please run this script from the skimage repository root:")
-    print("  python tools/generate_pyproject.toml.py")
-    sys.exit(1)
-
-
-def parse_requirements_file(filename):
-    with open(filename) as fid:
-        requires = [l.strip() for l in fid.readlines() if not l.startswith("#")]
-        requires = [l for l in requires if l]
-
-    return requires
-
-
-with open("tools/pyproject.toml.in") as f:
-    pyproject = toml.load(f)
-
-# pyproject['project']['dependencies'] = \
-#   parse_requirements_file("requirements/default.txt")
-
-pyproject["project"]["optional-dependencies"] = {
-    dep: parse_requirements_file(f"requirements/{dep}.txt") for dep in ["doc", "test"]
-}
-
-banner = f"""\
-{"#" * 80}
-# DO NOT EDIT
-# AUTOGENERATED BY
-#
-#     $ python tools/generate_pyproject.toml.py
-#
-# EDIT tools/pyproject.toml.in AND RUN THAT SCRIPT.
-#
-{"#" * 80}
-
-"""
-
-with open("pyproject.toml", "w") as f:
-    f.write(banner)
-    toml.dump(pyproject, f, pretty=True)
diff --git a/tools/pyproject.toml.in b/tools/pyproject.toml.in
deleted file mode 100644
index 51d33b64..00000000
--- a/tools/pyproject.toml.in
+++ /dev/null
@@ -1,71 +0,0 @@
-[build-system]
-requires = [
-    "setuptools>=61.2",
-]
-build-backend = "setuptools.build_meta"
-
-[project]
-name = "numpydoc"
-description = "Sphinx extension to support docstrings in Numpy format"
-license = {file = "LICENSE.txt"}
-dynamic = ['version']
-keywords = [
-    "sphinx",
-    "numpy",
-]
-readme = "README.rst"
-classifiers = [
-    "Development Status :: 4 - Beta",
-    "Environment :: Plugins",
-    "License :: OSI Approved :: BSD License",
-    "Topic :: Documentation",
-    "Programming Language :: Python",
-    "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
-    "Programming Language :: Python :: 3.9",
-    "Programming Language :: Python :: 3.10",
-    "Programming Language :: Python :: 3.11",
-]
-requires-python = ">=3.8"
-dependencies = [
-    "sphinx>=5",
-    "Jinja2>=2.10",
-    "tabulate>=0.8.10",
-    "tomli>=1.1.0;python_version<'3.11'",
-]
-
-[[project.authors]]
-name = "Pauli Virtanen and others"
-email = "pav@iki.fi"
-
-[project.urls]
-Homepage = "https://numpydoc.readthedocs.io"
-Source = "https://github.com/numpy/numpydoc/"
-
-[project.optional-dependencies]
-
-[project.scripts]
-validate-docstrings = "numpydoc.hooks.validate_docstrings:main"
-
-[tool.setuptools]
-packages = [
-    "numpydoc",
-    "numpydoc.hooks",
-]
-include-package-data = false
-
-[tool.setuptools.dynamic]
-version = {attr = "numpydoc.__version__"}
-
-[tool.setuptools.package-data]
-numpydoc = [
-    "tests/test_*.py",
-    "tests/tinybuild/Makefile",
-    "tests/tinybuild/index.rst",
-    "tests/tinybuild/*.py",
-    "templates/*.rst",
-]
-
-[tool.pytest.ini_options]
-addopts = "--showlocals --doctest-modules -ra --cov-report= --cov=numpydoc\n--junit-xml=junit-results.xml --ignore=doc/ --ignore=tools/"
-junit_family = "xunit2"