diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c7b1de7..48c0c61 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
           cache: pip
-          cache-dependency-path: setup.py
+          cache-dependency-path: setup.cfg
       - run: pip install .[test]
       # Print the ijson backend, to make any errors easier to debug.
       - run: python -c "import ijson; print(ijson.backend)"
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 66d0e91..eb4b111 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -12,10 +12,10 @@ jobs:
         with:
           python-version: 3.8
           cache: pip
-          cache-dependency-path: setup.py
+          cache-dependency-path: setup.cfg
       - run: curl -s -S --retry 3 $BASEDIR/tests/install.sh | bash -
       - run: curl -s -S --retry 3 $BASEDIR/tests/script.sh | bash -
       - run: pip install .[test]
       - run: pytest /tmp/test_requirements.py
-      - run: pip install --upgrade check-manifest setuptools
+      - run: pip install --upgrade check-manifest
       - run: check-manifest
diff --git a/.github/workflows/pypi.yml b/.github/workflows/pypi.yml
index 9301126..09a0405 100644
--- a/.github/workflows/pypi.yml
+++ b/.github/workflows/pypi.yml
@@ -8,8 +8,8 @@ jobs:
       - uses: actions/setup-python@v4
         with:
           python-version: 3.8
-      - run: pip install --upgrade setuptools wheel
-      - run: python setup.py sdist bdist_wheel
+      - run: pip install --upgrade build
+      - run: python -m build --sdist --wheel
       - name: Publish to TestPyPI
         uses: pypa/gh-action-pypi-publish@release/v1
         with:
diff --git a/pyproject.toml b/pyproject.toml
index 6da1ddf..2b00077 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,7 @@
+[build-system]
+requires = ["setuptools>=61.2"]
+build-backend = "setuptools.build_meta"
+
 [tool.pylint.BASIC]
 good-names = 'e,f,i,n,io'  # exception, file, enumerate, number
 
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000..26cc72c
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,50 @@
+[metadata]
+name = ocdskit
+version = 1.1.3
+author = Open Contracting Partnership
+author_email = data@open-contracting.org
+license = BSD
+description = A suite of command-line tools for working with OCDS data
+url = https://github.com/open-contracting/ocdskit
+long_description = file: README.rst
+classifiers =
+    License :: OSI Approved :: BSD License
+    Operating System :: OS Independent
+    Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
+    Programming Language :: Python :: Implementation :: CPython
+    Programming Language :: Python :: Implementation :: PyPy
+
+[options]
+packages = find:
+install_requires =
+    ijson>=2.5
+    jsonref
+    ocdsmerge>=0.6
+    ocdsextensionregistry>=0.1.2
+
+[options.packages.find]
+exclude =
+    tests
+    tests.*
+
+[options.entry_points]
+console_scripts =
+    ocdskit = ocdskit.__main__:main
+
+[options.extras_require]
+perf =
+    orjson>=3
+test =
+    coveralls
+    jsonpointer
+    pytest
+    pytest-cov
+    pytest-vcr
+docs =
+    furo
+    sphinx
+    sphinx-autobuild
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 9e095dc..0000000
--- a/setup.py
+++ /dev/null
@@ -1,56 +0,0 @@
-from setuptools import find_packages, setup
-
-with open('README.rst') as f:
-    long_description = f.read()
-
-setup(
-    name='ocdskit',
-    version='1.1.3',
-    author='Open Contracting Partnership',
-    author_email='data@open-contracting.org',
-    url='https://github.com/open-contracting/ocdskit',
-    description='A suite of command-line tools for working with OCDS data',
-    license='BSD',
-    packages=find_packages(exclude=['tests', 'tests.*']),
-    long_description=long_description,
-    long_description_content_type='text/x-rst',
-    install_requires=[
-        'ijson>=2.5',
-        'jsonref',
-        'ocdsmerge>=0.6',
-        'ocdsextensionregistry>=0.1.2',
-    ],
-    extras_require={
-        'perf': [
-            'orjson>=3',
-        ],
-        'test': [
-            'coveralls',
-            'jsonpointer',
-            'pytest',
-            'pytest-cov',
-            'pytest-vcr',
-        ],
-        'docs': [
-            'furo',
-            'sphinx',
-            'sphinx-autobuild',
-        ],
-    },
-    classifiers=[
-        'License :: OSI Approved :: BSD License',
-        'Operating System :: OS Independent',
-        'Programming Language :: Python :: 3.7',
-        'Programming Language :: Python :: 3.8',
-        'Programming Language :: Python :: 3.9',
-        'Programming Language :: Python :: 3.10',
-        'Programming Language :: Python :: 3.11',
-        'Programming Language :: Python :: Implementation :: CPython',
-        'Programming Language :: Python :: Implementation :: PyPy',
-    ],
-    entry_points={
-        'console_scripts': [
-            'ocdskit = ocdskit.__main__:main',
-        ],
-    },
-)