diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bef70d9f..6f1f8cea 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -36,7 +36,7 @@ jobs:
         python-version: 3.12
     - name: Lint with flake8
       run: |
-        pip install flake8
+        pip install flake8 flake8-pyproject
         flake8 src scripts conftest.py
 
   tox:
diff --git a/pyproject.toml b/pyproject.toml
index 8fd8d67e..a0679c27 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,76 @@
+[project]
+name = "nsupdate"
+dynamic = ["version"]
+authors = [{name="The nsupdate.info Team (see AUTHORS)", email="info@nsupdate.info"}, ]
+description = "A dynamic DNS update service"
+readme = "README.rst"
+keywords = ["dyndns", "ddns", "dynamic dns", "django"]
+classifiers = [
+    'Development Status :: 5 - Production/Stable',
+    'Environment :: Web Environment',
+    'Framework :: Django',
+    'License :: OSI Approved :: BSD License',
+    'Operating System :: OS Independent',
+    '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',
+    'Programming Language :: Python :: 3.12',
+    'Topic :: Internet :: Name Service (DNS)',
+]
+license = {text="BSD"}
+requires-python = ">=3.8, <3.13"
+dependencies = [
+    'dnspython',
+    'netaddr',
+    'django >=4.2.0, <4.3.0',
+    'django-bootstrap-form',
+    'django-referrer-policy',
+    'django-registration-redux',
+    'django-extensions',
+    'social-auth-app-django',
+    'requests',  # for our ddns_client
+]
+
+[project.urls]
+Homepage = "https://github.com/nsupdate-info/nsupdate.info/"
+
 [build-system]
-requires = ["setuptools", "setuptools-scm"]
+requires = ["setuptools", "setuptools_scm[toml]>=6.2"]
 build-backend = "setuptools.build_meta"
+
+[tool.setuptools_scm]
+# make sure we have the same versioning scheme with all setuptools_scm versions, to avoid different autogenerated files
+# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1015052
+# https://github.com/borgbackup/borg/issues/6875
+write_to = "src/nsupdate/_version.py"
+write_to_template = "__version__ = version = {version!r}\n"
+
+[tool.pytest.ini_options]
+markers = ["requires_sequential"]
+env = [
+    "DJANGO_SETTINGS_MODULE = nsupdate.settings.dev",
+]
+
+[tool.flake8]
+ignore = [
+    "E124",
+    "E125",
+    "E129",
+    "E402",
+    "E501",
+    "E722",
+    "E731",
+    "F401",
+    "F403",
+    "F405",
+    "F811",
+    "F841",
+    "W503",
+    "W504",
+]
+max_line_length = 120
+exclude = ['build', 'dist', '.git', '.idea', '.cache', '.mypy_cache', '.tox', 'docs', 'migrations']
+
diff --git a/requirements.d/dev.txt b/requirements.d/dev.txt
index a2f8921a..0f7f74ed 100644
--- a/requirements.d/dev.txt
+++ b/requirements.d/dev.txt
@@ -5,6 +5,7 @@ pytest
 pytest-django
 pytest-cov
 tox
+build
 wheel
 pylint
 pylint-django
diff --git a/setup.cfg b/setup.cfg
index 19c53321..9b99664b 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,18 +1,3 @@
-[egg_info]
-tag_build = 
-tag_date = 0
-tag_svn_revision = 0
-
-[bdist_rpm]
-release=1
-doc_files=
-    README.rst
-    LICENSE
-    PKG-INFO
-    docs/
-requires=python
-build_requires=python
-
 [build_sphinx]
 source-dir = docs/
 build-dir = docs/_build
@@ -20,28 +5,3 @@ all_files = 1
 
 [upload_sphinx]
 upload-dir = docs/_build/html
-
-[tool:pytest]
-DJANGO_SETTINGS_MODULE = nsupdate.settings.dev
-markers =
- requires_sequential
-
-[flake8]
-max_line_length = 120
-exclude = build,dist,.git,.idea,.cache,.tox,docs,migrations
-ignore =
- E124
- E125
- E129
- E402
- E501
- E722
- E731
- F401
- F403
- F405
- F811
- F841
- W503
- W504
-
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 6e897c53..00000000
--- a/setup.py
+++ /dev/null
@@ -1,59 +0,0 @@
-"""
-setup for nsupdate package
-"""
-
-from setuptools import setup, find_packages
-
-
-with open('README.rst') as f:
-    readme_content = f.read()
-
-setup(
-    name='nsupdate',
-    use_scm_version={
-        'write_to': 'src/nsupdate/_version.py',
-    },
-    url='http://github.com/nsupdate-info/nsupdate.info/',
-    license='BSD',
-    author='The nsupdate.info Team (see AUTHORS)',
-    author_email='info@nsupdate.info',
-    description='A dynamic DNS update service',
-    long_description=readme_content,
-    keywords="dyndns ddns dynamic dns django",
-    packages=find_packages('src', exclude=['_tests', ]),
-    package_dir={'': 'src'},
-    # See also the MANIFEST.in file.
-    # We want to install all the files in the package directories:
-    include_package_data=True,
-    zip_safe=False,
-    platforms='any',
-    python_requires='>=3.8, <3.13',
-    setup_requires=['setuptools_scm'],
-    install_requires=[
-        'dnspython',
-        'netaddr',
-        'django>=4.2.0,<4.3.0',
-        'django-bootstrap-form',
-        'django-referrer-policy',
-        'django-registration-redux',
-        'django-extensions',
-        'social-auth-app-django',
-        'requests',  # for our ddns_client
-        'setuptools_scm',
-    ],
-    classifiers=[
-        'Development Status :: 5 - Production/Stable',
-        'Environment :: Web Environment',
-        'Framework :: Django',
-        'License :: OSI Approved :: BSD License',
-        'Operating System :: OS Independent',
-        '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',
-        'Programming Language :: Python :: 3.12',
-        'Topic :: Internet :: Name Service (DNS)',
-    ],
-)
diff --git a/tox.ini b/tox.ini
index 3961a412..4efff377 100644
--- a/tox.ini
+++ b/tox.ini
@@ -19,4 +19,5 @@ skip_install=true
 changedir =
 deps =
     flake8
+    flake8-pyproject
 commands = flake8 src scripts conftest.py