diff --git a/.ci/install.sh b/.ci/install.sh
index 4748feb3d..cd9035f6a 100755
--- a/.ci/install.sh
+++ b/.ci/install.sh
@@ -46,6 +46,16 @@ if [[ $(uname) != CYGWIN* ]]; then
         python3 -m pip install pyqt6
     fi
 
+    # Pyroma uses non-isolated build and fails with old setuptools
+    if [[
+        $GHA_PYTHON_VERSION == pypy3.9
+        || $GHA_PYTHON_VERSION == 3.8
+        || $GHA_PYTHON_VERSION == 3.9
+    ]]; then
+        # To match pyproject.toml
+        python3 -m pip install "setuptools>=67.8"
+    fi
+
     # webp
     pushd depends && ./install_webp.sh && popd
 
diff --git a/.flake8 b/.flake8
new file mode 100644
index 000000000..e19c0a585
--- /dev/null
+++ b/.flake8
@@ -0,0 +1,3 @@
+[flake8]
+extend-ignore = E203
+max-line-length = 88
diff --git a/MANIFEST.in b/MANIFEST.in
index 2bbddefa3..9401ebbbf 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -7,6 +7,7 @@ include *.rst
 include *.sh
 include *.txt
 include *.yaml
+include .flake8
 include LICENSE
 include Makefile
 include tox.ini
diff --git a/docs/installation.rst b/docs/installation.rst
index 162880182..9f38a622c 100644
--- a/docs/installation.rst
+++ b/docs/installation.rst
@@ -356,7 +356,7 @@ for your machine (e.g. :file:`/usr` or :file:`/usr/local`), no
 additional configuration should be required. If they are installed in
 a non-standard location, you may need to configure setuptools to use
 those locations by editing :file:`setup.py` or
-:file:`setup.cfg`, or by adding environment variables on the command
+:file:`pyproject.toml`, or by adding environment variables on the command
 line::
 
     CFLAGS="-I/usr/pkg/include" python3 -m pip install --upgrade Pillow --no-binary :all:
diff --git a/pyproject.toml b/pyproject.toml
index fd9c05f92..6f6ed6e93 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,3 +6,80 @@ requires = [
 backend-path = [
   "_custom_build",
 ]
+
+[project]
+name = "pillow"
+description = "Python Imaging Library (Fork)"
+readme = "README.md"
+keywords = [
+  "Imaging",
+]
+license = {text = "HPND"}
+authors = [{name = "Jeffrey A. Clark (Alex)", email = "aclark@aclark.net"}]
+requires-python = ">=3.8"
+classifiers = [
+  "Development Status :: 6 - Mature",
+  "License :: OSI Approved :: Historical Permission Notice and Disclaimer (HPND)",
+  "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 :: 3.12",
+  "Programming Language :: Python :: Implementation :: CPython",
+  "Programming Language :: Python :: Implementation :: PyPy",
+  "Topic :: Multimedia :: Graphics",
+  "Topic :: Multimedia :: Graphics :: Capture :: Digital Camera",
+  "Topic :: Multimedia :: Graphics :: Capture :: Screen Capture",
+  "Topic :: Multimedia :: Graphics :: Graphics Conversion",
+  "Topic :: Multimedia :: Graphics :: Viewers",
+]
+dynamic = [
+  "version",
+]
+[project.optional-dependencies]
+docs = [
+  "furo",
+  "olefile",
+  "sphinx>=2.4",
+  "sphinx-copybutton",
+  "sphinx-inline-tabs",
+  "sphinx-removed-in",
+  "sphinxext-opengraph",
+]
+tests = [
+  "check-manifest",
+  "coverage",
+  "defusedxml",
+  "markdown2",
+  "olefile",
+  "packaging",
+  "pyroma",
+  "pytest",
+  "pytest-cov",
+  "pytest-timeout",
+]
+[project.urls]
+Changelog = "https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst"
+Documentation = "https://pillow.readthedocs.io"
+Funding = "https://tidelift.com/subscription/pkg/pypi-pillow?utm_source=pypi-pillow&utm_medium=pypi"
+Homepage = "https://python-pillow.org"
+Mastodon = "https://fosstodon.org/@pillow"
+"Release notes" = "https://pillow.readthedocs.io/en/stable/releasenotes/index.html"
+Source = "https://github.com/python-pillow/Pillow"
+Twitter = "https://twitter.com/PythonPillow"
+
+[tool.setuptools]
+packages = ["PIL"]
+include-package-data = true
+package-dir = {"" = "src"}
+
+[tool.setuptools.dynamic]
+version = {attr = "PIL.__version__"}
+
+[tool.isort]
+profile = "black"
+
+[tool.pytest.ini_options]
+addopts = "-ra --color=yes"
+testpaths = ["Tests"]
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index e560f9516..000000000
--- a/setup.cfg
+++ /dev/null
@@ -1,74 +0,0 @@
-[metadata]
-name = Pillow
-description = Python Imaging Library (Fork)
-long_description = file: README.md
-long_description_content_type = text/markdown
-url = https://python-pillow.org
-author = Jeffrey A. Clark (Alex)
-author_email = aclark@aclark.net
-license = HPND
-classifiers =
-    Development Status :: 6 - Mature
-    License :: OSI Approved :: Historical Permission Notice and Disclaimer (HPND)
-    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 :: 3.12
-    Programming Language :: Python :: Implementation :: CPython
-    Programming Language :: Python :: Implementation :: PyPy
-    Topic :: Multimedia :: Graphics
-    Topic :: Multimedia :: Graphics :: Capture :: Digital Camera
-    Topic :: Multimedia :: Graphics :: Capture :: Screen Capture
-    Topic :: Multimedia :: Graphics :: Graphics Conversion
-    Topic :: Multimedia :: Graphics :: Viewers
-keywords = Imaging
-project_urls =
-    Documentation=https://pillow.readthedocs.io
-    Source=https://github.com/python-pillow/Pillow
-    Funding=https://tidelift.com/subscription/pkg/pypi-pillow?utm_source=pypi-pillow&utm_medium=pypi
-    Release notes=https://pillow.readthedocs.io/en/stable/releasenotes/index.html
-    Changelog=https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst
-    Twitter=https://twitter.com/PythonPillow
-    Mastodon=https://fosstodon.org/@pillow
-
-[options]
-packages = PIL
-python_requires = >=3.8
-include_package_data = True
-package_dir =
-    = src
-
-[options.extras_require]
-docs =
-    furo
-    olefile
-    sphinx>=2.4
-    sphinx-copybutton
-    sphinx-inline-tabs
-    sphinx-removed-in
-    sphinxext-opengraph
-tests =
-    check-manifest
-    coverage
-    defusedxml
-    markdown2
-    olefile
-    packaging
-    pyroma
-    pytest
-    pytest-cov
-    pytest-timeout
-
-[flake8]
-extend-ignore = E203
-max-line-length = 88
-
-[isort]
-profile = black
-
-[tool:pytest]
-addopts = -ra --color=yes
-testpaths = Tests
diff --git a/setup.py b/setup.py
index 935166716..f13f03713 100755
--- a/setup.py
+++ b/setup.py
@@ -986,7 +986,6 @@ ext_modules = [
 
 try:
     setup(
-        version=PILLOW_VERSION,
         cmdclass={"build_ext": pil_build_ext},
         ext_modules=ext_modules,
         zip_safe=not (debug_build() or PLATFORM_MINGW),