diff --git a/.github/workflows/performance.yml b/.github/workflows/performance.yml
index e54201d..5333e59 100644
--- a/.github/workflows/performance.yml
+++ b/.github/workflows/performance.yml
@@ -14,7 +14,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        python-version: [3.8, 3.13]
+        python-version: [3.9, 3.13]
     env:
       OS: ${{ matrix.os }}
     steps:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8a8ef1e..fe2f112 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,7 @@
 
 ### Infrastructure
 * use trusted publisher for release (see https://docs.pypi.org/trusted-publishers/)
-* pin Python 3.7 builds to ubuntu 22.04 (not available in 24.04)
+* use `pyproject.toml` for project setup
 
 ### Documentation
 * added use case for ordering test modules (see [#51](https://github.com/pytest-dev/pytest-order/issues/51))
diff --git a/docs/source/conf.py b/docs/source/conf.py
index c5dcce9..d1d1d60 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -18,7 +18,7 @@
 import os
 import sys
 
-sys.path.insert(0, os.path.abspath("../.."))
+sys.path.insert(0, os.path.abspath("../../src"))
 
 from pytest_order import __version__  # noqa: E402
 
diff --git a/mypy.ini b/mypy.ini
deleted file mode 100644
index b016e31..0000000
--- a/mypy.ini
+++ /dev/null
@@ -1,19 +0,0 @@
-[mypy]
-; Ensures correct typing information inside non-typed functions
-check_untyped_defs = True
-; Strict checking for None
-no_implicit_optional = True
-; Disallow none and partial generics
-disallow_any_generics = True
-; Point out pointless things
-warn_redundant_casts = True
-warn_unused_ignores = True
-; Misc
-show_error_codes = True
-
-; These are needed for VSCode
-; Silences errors about missing imports
-; (type-checks correctly when they're not missing tho)
-ignore_missing_imports = True
-; Needed to position the underline correctly
-show_column_numbers = True
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..26a705a
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,79 @@
+[build-system]
+requires = [
+    "setuptools>=77.0.3",
+]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "pytest-order"
+description = "pytest plugin to run tests in a specific order"
+readme = "README.md"
+keywords = [
+    "testing",
+    "pytest",
+    "ordering",
+]
+license = "MIT"
+license-files = ["LICENSE"]
+requires-python = ">=3.9"
+dynamic = ["version"]
+dependencies = [
+    "pytest>=5.0; python_version < '3.10'",
+    "pytest>=6.2.4; python_version >= '3.10'",
+]
+authors = [
+    {name = "mrbean-bremen", email = "hansemrbean@googlemail.com"}
+]
+classifiers = [
+    "Intended Audience :: Developers",
+    "Development Status :: 5 - Production/Stable",
+    "Environment :: Console",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Operating System :: POSIX :: Linux",
+    "Operating System :: MacOS",
+    "Operating System :: Microsoft :: Windows",
+    "Topic :: Software Development :: Testing",
+    "Topic :: Software Development :: Quality Assurance",
+    "Topic :: Utilities",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest-mock>=1.11.0",
+    "pytest-xdist>=1.29.0",
+    "pytest-dependency>=0.5.1",
+]
+
+[project.urls]
+homepage = "https://github.com/pytest-dev/pytest-order"
+documentation = "https://pytest-order.readthedocs.io/"
+download = "https://github.com/pytest-dev/pytest-order/archive/main.zip"
+repository = "https://github.com/pytest-dev/pytest-order"
+changelog = "https://github.com/pytest-dev/pytest-order/blob/main/CHANGELOG.md"
+issues = "https://github.com/pytest-dev/pytest-order/issues"
+
+[project.entry-points.pytest11]
+pytest_order = "pytest_order.plugin"
+
+[tool.setuptools.dynamic]
+version = {attr = "pytest_order.__version__"}
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+
+[tool.mypy]
+mypy_path = "src/"
+no_namespace_packages = true
+check_untyped_defs = true
+no_implicit_optional = true
+disallow_any_generics = true
+warn_redundant_casts = true
+warn_unused_ignores = true
+show_error_codes = true
+ignore_missing_imports = true
+show_column_numbers = true
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index ccdd272..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,7 +0,0 @@
-[metadata]
-description_file = README.md
-license_files = LICENSE
-[bdist_wheel]
-universal=0
-[tool:pytest]
-testpaths = tests
diff --git a/setup.py b/setup.py
deleted file mode 100644
index c18b61c..0000000
--- a/setup.py
+++ /dev/null
@@ -1,56 +0,0 @@
-#!/usr/bin/env python
-
-from setuptools import setup
-import os
-
-__here__ = os.path.abspath(os.path.dirname(__file__))
-
-from pytest_order import __version__
-
-with open(os.path.join(__here__, "README.md")) as f:
-    LONG_DESCRIPTION = f.read()
-
-
-setup(
-    name="pytest-order",
-    description="pytest plugin to run your tests in a specific order",
-    long_description=LONG_DESCRIPTION,
-    long_description_content_type="text/markdown",
-    version=__version__,
-    author="mrbean-bremen",
-    author_email="hansemrbean@googlemail.com",
-    url="https://github.com/pytest-dev/pytest-order",
-    packages=["pytest_order"],
-    license="MIT",
-    entry_points={
-        "pytest11": [
-            "pytest_order = pytest_order.plugin",
-        ]
-    },
-    python_requires=">=3.7",
-    install_requires=[
-        "pytest>=5.0; python_version < '3.10'",
-        "pytest>=6.2.4; python_version >= '3.10'",
-    ],
-    classifiers=[
-        "Development Status :: 5 - Production/Stable",
-        "Intended Audience :: Developers",
-        "License :: OSI Approved :: MIT License",
-        "Operating System :: POSIX",
-        "Operating System :: Microsoft :: Windows",
-        "Operating System :: MacOS :: MacOS X",
-        "Topic :: Software Development :: Testing",
-        "Topic :: Software Development :: Quality Assurance",
-        "Topic :: Utilities",
-        "Programming Language :: Python",
-        "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.9",
-        "Programming Language :: Python :: 3.10",
-        "Programming Language :: Python :: 3.11",
-        "Programming Language :: Python :: 3.12",
-        "Programming Language :: Python :: 3.13",
-        "Programming Language :: Python :: 3 :: Only",
-        "Programming Language :: Python :: Implementation :: CPython",
-        "Programming Language :: Python :: Implementation :: PyPy",
-    ],
-)
diff --git a/pytest_order/__init__.py b/src/pytest_order/__init__.py
similarity index 100%
rename from pytest_order/__init__.py
rename to src/pytest_order/__init__.py
diff --git a/pytest_order/item.py b/src/pytest_order/item.py
similarity index 100%
rename from pytest_order/item.py
rename to src/pytest_order/item.py
diff --git a/pytest_order/plugin.py b/src/pytest_order/plugin.py
similarity index 100%
rename from pytest_order/plugin.py
rename to src/pytest_order/plugin.py
diff --git a/pytest_order/settings.py b/src/pytest_order/settings.py
similarity index 100%
rename from pytest_order/settings.py
rename to src/pytest_order/settings.py
diff --git a/pytest_order/sorter.py b/src/pytest_order/sorter.py
similarity index 100%
rename from pytest_order/sorter.py
rename to src/pytest_order/sorter.py
diff --git a/tests/conftest.py b/tests/conftest.py
index 8f2972f..fbfa5e8 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,4 +1,5 @@
 import pytest
+
 from pytest_order.settings import Scope
 
 pytest_plugins = ["pytester"]