diff --git a/setup.cfg b/.flake8
similarity index 100%
rename from setup.cfg
rename to .flake8
diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 4eae62e8..037dcad0 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -41,7 +41,7 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: ${{ matrix.pyver }}
-      - run: python setup.py sdist
+      - run: python -m build
       - run: pip install dist/localstripe-*.tar.gz
       - run: python -m localstripe &
       # Wait for server to be up:
diff --git a/README.rst b/README.rst
index 4e769c08..4a57539c 100644
--- a/README.rst
+++ b/README.rst
@@ -242,7 +242,7 @@ To quickly build and run localstripe from source:
 
 .. code:: shell
 
- python setup.py sdist
+ python -m build
  pip install --user --upgrade dist/localstripe-*.tar.gz
  localstripe
 
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 00000000..8f4c83eb
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,48 @@
+[project]
+name = "localstripe"
+description = """
+A fake but stateful Stripe server that you can run locally, for \
+testing purposes."""
+readme = {file = "README.rst", content-type = "text/x-rst"}
+requires-python = ">=3.8"
+license = {text = "GPL-3.0-or-later"}
+authors = [{name = "Adrien Vergé"}]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Developers",
+    "Topic :: Software Development",
+    "Topic :: Software Development :: Quality Assurance",
+    "Topic :: Software Development :: Testing",
+]
+dependencies = [
+    "aiohttp >=2.3.2",
+    "python-dateutil >=2.6.1",
+]
+dynamic = ["version"]
+
+[project.optional-dependencies]
+dev = [
+    "flake8",
+    "flake8-import-order",
+]
+
+[project.scripts]
+localstripe = "localstripe.server:start"
+
+[project.urls]
+homepage = "https://github.com/adrienverge/localstripe"
+repository = "https://github.com/adrienverge/localstripe"
+documentation = "https://github.com/adrienverge/localstripe"
+
+[build-system]
+build-backend = "setuptools.build_meta"
+requires = ["setuptools >= 61"]
+
+[tool.setuptools]
+packages = ["localstripe"]
+
+[tool.setuptools.package-data]
+localstripe = ["localstripe-v3.js"]
+
+[tool.setuptools.dynamic]
+version = {attr = "localstripe.__version__"}
diff --git a/setup.py b/setup.py
index ba149cc0..9bad74d4 100644
--- a/setup.py
+++ b/setup.py
@@ -15,25 +15,6 @@
 
 from setuptools import setup
 
-from localstripe import __author__, __version__
-
-
-setup(
-    name='localstripe',
-    version=__version__,
-    author=__author__,
-    url='https://github.com/adrienverge/localstripe',
-    description=('A fake but stateful Stripe server that you can run locally, '
-                 'for testing purposes.'),
-
-    packages=['localstripe'],
-    entry_points={'console_scripts':
-                  ['localstripe=localstripe.server:start']},
-    package_data={
-        'localstripe': ['localstripe-v3.js'],
-    },
-    install_requires=[
-        'aiohttp >=2.3.2',
-        'python-dateutil >=2.6.1',
-    ],
-)
+# This is only kept for backward-compatibility with older versions that don't
+# support new packaging standards (e.g. PEP 517 or PEP 660):
+setup()