diff --git a/.flake8 b/.flake8
new file mode 100644
index 00000000..9dd202f3
--- /dev/null
+++ b/.flake8
@@ -0,0 +1,4 @@
+[flake8]
+exclude = static,.git,*migrations*,build,.tox,docs
+max-line-length = 119
+max-complexity = 7
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 00000000..34dc09c7
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,46 @@
+[project]
+name = "Bootstrap-Flask"
+description = "Bootstrap 4 & 5 helper for your Flask projects."
+readme = "README.md"
+license = { text = "MIT" }
+authors = [{ name = "Grey Li", email = "withlihui@gmail.com" }]
+classifiers = [
+    'Development Status :: 5 - Production/Stable',
+    'Environment :: Web Environment',
+    'Intended Audience :: Developers',
+    'License :: OSI Approved :: MIT 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',
+    'Framework :: Flask',
+    'Topic :: Internet :: WWW/HTTP :: Dynamic Content',
+    'Topic :: Software Development :: Libraries :: Python Modules',
+]
+dependencies = ["Flask", "WTForms"]
+version = "2.3.3"
+
+[project.urls]
+Documentation = "https://bootstrap-flask.readthedocs.io/en/stable/"
+Changes = "https://bootstrap-flask.readthedocs.io/en/stable/changelog/"
+"Source Code" = "https://github.com/helloflask/bootstrap-flask/"
+"Issue Tracker" = "https://github.com/helloflask/bootstrap-flask/issues/"
+Funding = "https://opencollective.com/bootstrap-flask"
+Discussions = "https://github.com/helloflask/bootstrap-flask/discussions/"
+
+[build-system]
+requires = ["setuptools"]
+build-backend = "setuptools.build_meta"
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+
+[tool.coverage.run]
+source = ["flask_bootstrap"]
+
+[tool.coverage.report]
+exclude_lines = ["pragma: no cover", " except ImportError:"]
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 5d578c2c..00000000
--- a/setup.cfg
+++ /dev/null
@@ -1,24 +0,0 @@
-[metadata]
-license_file = LICENSE
-
-[bdist_wheel]
-universal = 1
-
-[coverage:run]
-source = flask_bootstrap
-
-[coverage:report]
-exclude_lines =
-    pragma: no cover
-    except ImportError:
-
-[flake8]
-exclude = static,.git,*migrations*,build,.tox,docs
-max-line-length = 119
-max-complexity = 7
-
-[aliases]
-test = pytest
-
-[tool:pytest]
-testpaths = tests
diff --git a/setup.py b/setup.py
deleted file mode 100644
index e92b364a..00000000
--- a/setup.py
+++ /dev/null
@@ -1,62 +0,0 @@
-"""
-Bootstrap-Flask
----------------
-
-Bootstrap-Flask is a collection of Jinja macros for Bootstrap 4 & 5 and Flask.
-It helps you to render Flask-related objects and data to Bootstrap HTML more easily.
-
-If you come from Flask-Bootstrap, check out
-[this tutorial](https://bootstrap-flask.readthedocs.io/en/stable/migrate/)
-on how to migrate to this extension.
-
-Go to [GitHub page](https://github.com/helloflask/bootstrap-flask), which you
-can check for more details.
-"""
-from setuptools import setup
-
-setup(
-    name='Bootstrap-Flask',
-    version='2.3.3',
-    url='https://github.com/helloflask/bootstrap-flask',
-    project_urls={
-        'Documentation': 'https://bootstrap-flask.readthedocs.io/en/stable/',
-        'Funding': 'https://opencollective.com/bootstrap-flask',
-        'Changes': 'https://bootstrap-flask.readthedocs.io/en/stable/changelog/',
-        'Source Code': 'https://github.com/helloflask/bootstrap-flask/',
-        'Issue Tracker': 'https://github.com/helloflask/bootstrap-flask/issues/',
-        'Discussions': 'https://github.com/helloflask/bootstrap-flask/discussions/'
-    },
-    license='MIT',
-    author='Grey Li',
-    author_email='withlihui@gmail.com',
-    description='Bootstrap 4 & 5 helper for your Flask projects.',
-    long_description=__doc__,
-    long_description_content_type='text/markdown',
-    platforms='any',
-    packages=['flask_bootstrap'],
-    zip_safe=False,
-    include_package_data=True,
-    test_suite='tests',
-    install_requires=[
-        'Flask',
-        'WTForms'
-    ],
-    keywords='flask extension development',
-    classifiers=[
-        'Development Status :: 5 - Production/Stable',
-        'Environment :: Web Environment',
-        'Intended Audience :: Developers',
-        'License :: OSI Approved :: MIT 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',
-        'Framework :: Flask',
-        'Topic :: Internet :: WWW/HTTP :: Dynamic Content',
-        'Topic :: Software Development :: Libraries :: Python Modules'
-    ]
-)