diff --git a/.gitignore b/.gitignore
index d26b5515..6c2913af 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,9 @@ __pycache__/
 # C extensions
 *.so
 
+# API documentation generated by pdoc3
+api-docs/
+
 # Distribution / packaging
 .Python
 build/
diff --git a/changelog.d/373.trivial.rst b/changelog.d/373.trivial.rst
new file mode 100644
index 00000000..0093c3bb
--- /dev/null
+++ b/changelog.d/373.trivial.rst
@@ -0,0 +1 @@
+Changed build backend to hatchling
diff --git a/changelog.d/374.trivial.rst b/changelog.d/374.trivial.rst
new file mode 100644
index 00000000..1aa19937
--- /dev/null
+++ b/changelog.d/374.trivial.rst
@@ -0,0 +1 @@
+Updated format of Towncrier's configuration in ``pyproject.toml``
diff --git a/docs/advanced/coerce.py b/docs/advanced/coerce.py
index 7da20315..38bd6caf 100644
--- a/docs/advanced/coerce.py
+++ b/docs/advanced/coerce.py
@@ -1,7 +1,7 @@
 import re
-from semver import Version
 from typing import Optional, Tuple
 
+from semver import Version
 
 BASEVERSION = re.compile(
     r"""[vV]?
diff --git a/docs/conf.py b/docs/conf.py
index ed888361..b5f040bc 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -17,10 +17,10 @@
 # documentation root, use os.path.abspath to make it absolute, like shown here.
 #
 import codecs
-from datetime import date
 import os
 import re
 import sys
+from datetime import date
 
 SRC_DIR = os.path.abspath("../src/")
 sys.path.insert(0, SRC_DIR)
diff --git a/pyproject.toml b/pyproject.toml
index ba4be51b..4c9d4b08 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,34 +1,184 @@
-#
-#
-# See also https://setuptools.pypa.io/en/latest/userguide/pyproject_config.html
-#
-# General idea taken from
-# https://godatadriven.com/blog/a-practical-guide-to-setuptools-and-pyproject-toml/
-
 [build-system]
 requires = [
-  # sync with setup.py until we discard non-pep-517/518
-  "setuptools",
-  "setuptools-scm",
-  "wheel",
-  "build",
+    "hatchling>=1.8.0",
+]
+build-backend = "hatchling.build"
+
+[project]
+name = "semver"
+description = "Python helper for Semantic Versioning (https://semver.org)"
+readme = "README.rst"
+requires-python = ">=3.7"
+authors = [
+    { name = "Kostiantyn Rybnikov", email = "k-bx@k-bx.com" },
+]
+maintainers = [
+    { name = "Sebastien Celles", email = "s.celles@gmail.com" },
+    { name = "Tom Schraitle" },
+]
+keywords = [
+    "python",
+    "version",
+    "semver",
+    "versioning",
+    "version",
+    "semantic-versioning",
+    "release",
+    "semver-format",
+    "semver-tag",
+    "semver-release",
+    "semver-cli",
+]
+classifiers = [
+    # I think python-semver is more "Console" than "Web Environment"
+    #"Environment :: Web Environment",
+    "Environment :: Console",
+    "Development Status :: 5 - Production/Stable",
+    "Topic :: Software Development",
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: BSD License",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "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",
+    "Topic :: Software Development :: Libraries :: Python Modules",
 ]
-build-backend = "setuptools.build_meta"
+dependencies = []
+dynamic = [
+    "version",
+]
+
+[project.urls]
+Homepage = "https://github.com/python-semver/python-semver"
+Changelog = "https://python-semver.readthedocs.io/en/latest/changelog.html"
+Documentation = "https://python-semver.rtfd.io"
+Releases = "https://github.com/python-semver/python-semver/releases"
+Issues = "https://github.com/python-semver/python-semver/issues"
+
+[project.license]
+file = "LICENSE.txt"
+
+[project.scripts]
+pysemver = "semver.cli:main"
+
+[tool.hatch.version]
+path = "src/semver/__about__.py"
 
+[tool.hatch.build]
+include = [
+    "src/semver/*.py",
+    "src/semver/py.typed",
+]
+
+[tool.hatch.envs.default]
+dependencies = [
+    "towncrier",
+    "wheel",
+]
+
+[tool.hatch.envs.style]
+dependencies = [
+    "black",
+    "isort",
+    "flake8",
+    "pycodestyle",
+]
+
+[tool.hatch.envs.style.scripts]
+fmt = [
+    "black .",
+    "isort .",
+]
+lint = [
+    "flake8 --exit-zero",
+    "pycodestyle",
+]
+
+[tool.hatch.envs.docs]
+dependencies = [
+    "pdoc3"
+]
 
+[tool.hatch.envs.docs.scripts]
+build = "pdoc --html --output-dir api-docs src/semver --force"
+serve = "pdoc --http : python-semver"
+
+[tool.hatch.envs.test]
+dependencies = [
+    "pytest-cov",
+    "tox",
+]
+
+[tool.hatch.envs.test.scripts]
+cov = "pytest -vx"
+no-cov = "cov --no-cov"
+tox_test = "tox"
+
+[[tool.hatch.envs.test.matrix]]
+python = ["310", "311"]
+
+[tool.coverage.run]
+branch = true
+parallel = true
+omit = [
+    # add files to exclude them from the coverage report, e.g.
+    # "src/semver/__about__.py"
+]
+
+[tool.coverage.report]
+exclude_lines = [
+    "no cov",
+    "if __name__ == .__main__.:",
+    "if TYPE_CHECKING:",
+]
+
+[tool.mypy]
+# the mypy settings go here
+# To have the `py.typed` file installed with the package we had to include it
+# in the build metadata (see [tool.hatch.build])
+
+[tool.pytest.ini_options]
+norecursedirs = ".git build .env/ env/ .pyenv/ .tmp/ .eggs/ venv/"
+testpaths = "tests docs"
+filterwarnings = [
+    "ignore::DeprecationWarning",
+    'ignore:Function semver.*:DeprecationWarning',
+]
+addopts = """
+    --no-cov-on-fail
+    --cov=semver
+    --cov-report=term-missing
+    --doctest-glob='*.rst'
+    --doctest-modules
+    --doctest-report ndiff
+"""
+
+# flake8 does not support configuration in pyproject.toml
+# see https://github.com/PyCQA/flake8/issues/234
+# (there are alternatives, e.g. https://github.com/john-hen/Flake8-pyproject)
+# we stick to the original flake8 with configuration 
+# in the `[flake8]` section of setup.cfg
+
+# pycodestyle does not support configuration in pyproject.toml
+# We stick to the original pycodestyle configuration
+# in the `[pycodestyle]` section of setup.cfg
 
 [tool.black]
 line-length = 88
-target-version = ['py36', 'py37', 'py38', 'py39', 'py310']
+target-version = ['py37', 'py38', 'py39', 'py310']
 # diff = true
-extend-exclude = '''
+extend-exclude = """
 # A regex preceded with ^/ will apply only to files and directories
 # in the root of the project.
 ^/*.py
-'''
-include = '''
+"""
+include = """
 ^/setup.py
-'''
+"""
 
 [tool.towncrier]
 package = "semver"
@@ -40,42 +190,29 @@ template = "changelog.d/_template.rst"
 # issue_format = "`#{issue} <https://github.com/python-attrs/attrs/issues/{issue}>`_"
 # issue_format = ":gh:`{issue}`"
 
-  # [[tool.towncrier.type]]
-  # directory = "breaking"
-  # name = "Breaking Changes"
-  # showcontent = true
-
-  [[tool.towncrier.type]]
-  directory = "deprecation"
-  name = "Deprecations"
-  showcontent = true
-
-  [[tool.towncrier.type]]
-  directory = "feature"
-  name = "Features"
-  showcontent = true
-
-  # [[tool.towncrier.type]]
-  # directory = "improvement"
-  # name = "Improvements"
-  # showcontent = true
-
-  [[tool.towncrier.type]]
-  directory = "bugfix"
-  name = "Bug Fixes"
-  showcontent = true
-
-  [[tool.towncrier.type]]
-  directory = "doc"
-  name = "Improved Documentation"
-  showcontent = true
-
-  [[tool.towncrier.type]]
-  directory = "trivial"
-  name = "Trivial/Internal Changes"
-  showcontent = true
-
-  [[tool.towncrier.type]]
-  directory = "removal"
-  name = "Removals"
-  showcontent = true
+# [tool.towncrier.fragment.breaking]
+# name = "Breaking Changes"
+# showcontent = true
+
+[tool.towncrier.fragment.deprecation]
+name = "Deprecations"
+
+[tool.towncrier.fragment.feature]
+directory = "feature"
+name = "Features"
+
+# [tool.towncrier.fragment.improvement]
+# name = "Improvements"
+# showcontent = true
+
+[tool.towncrier.fragment.bugfix]
+name = "Bug Fixes"
+
+[tool.towncrier.fragment.doc]
+name = "Improved Documentation"
+
+[tool.towncrier.fragment.trivial]
+name = "Trivial/Internal Changes"
+
+[tool.towncrier.fragment.removal]
+name = "Removals"
diff --git a/setup.cfg b/setup.cfg
index 4087e787..25e61ce6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,71 +1,3 @@
-#
-# Metadata for setup.py
-#
-# See https://setuptools.rtfd.io/en/latest/userguide/declarative_config.html
-
-[metadata]
-name = semver
-version = attr: semver.__about__.__version__
-description = Python helper for Semantic Versioning (https://semver.org)
-long_description = file: README.rst
-long_description_content_type = text/x-rst
-author = Kostiantyn Rybnikov
-author_email = k-bx@k-bx.com
-maintainer = Sebastien Celles, Tom Schraitle
-maintainer_email = s.celles@gmail.com
-url = https://github.com/python-semver/python-semver
-project_urls =
-    Changelog = https://python-semver.readthedocs.io/en/latest/changelog.html
-    Documentation = https://python-semver.rtfd.io
-    Releases = https://github.com/python-semver/python-semver/releases
-    Bug Tracker = https://github.com/python-semver/python-semver/issues
-classifiers =
-    Environment :: Web Environment
-    Intended Audience :: Developers
-    License :: OSI Approved :: BSD License
-    Operating System :: OS Independent
-    Programming Language :: Python
-    Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.6
-    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
-    Topic :: Software Development :: Libraries :: Python Modules
-license = BSD
-
-[options]
-package_dir =
-    =src
-packages = find:
-python_requires = >=3.6.*
-include_package_data = True
-
-[options.entry_points]
-console_scripts =
-    pysemver = semver.cli:main
-
-[options.packages.find]
-where = src
-
-[options.package_data]
-semver = py.typed
-
-[tool:pytest]
-norecursedirs = .git build .env/ env/ .pyenv/ .tmp/ .eggs/ venv/
-testpaths = tests docs
-filterwarnings =
-    ignore:Function 'semver.*:DeprecationWarning
-    # ' <- This apostroph is just to fix syntax highlighting
-addopts =
-    --no-cov-on-fail
-    --cov=semver
-    --cov-report=term-missing
-    --doctest-glob='*.rst'
-    --doctest-modules
-    --doctest-report ndiff
-
 [flake8]
 max-line-length = 88
 ignore = F821,W503
diff --git a/src/semver/__init__.py b/src/semver/__init__.py
index c6726f2e..98e0ca24 100644
--- a/src/semver/__init__.py
+++ b/src/semver/__init__.py
@@ -4,36 +4,12 @@
 A Python module for semantic versioning. Simplifies comparing versions.
 """
 
-from ._deprecated import (
-    bump_build,
-    bump_major,
-    bump_minor,
-    bump_patch,
-    bump_prerelease,
-    compare,
-    finalize_version,
-    format_version,
-    match,
-    max_ver,
-    min_ver,
-    parse,
-    parse_version_info,
-    replace,
-    cmd_bump,
-    cmd_compare,
-    cmd_nextver,
-    cmd_check,
-    createparser,
-    process,
-    main,
-)
+from .__about__ import (SEMVER_SPEC_VERSION, __author__, __author_email__,
+                        __description__, __maintainer__, __maintainer_email__,
+                        __version__)
+from ._deprecated import (bump_build, bump_major, bump_minor, bump_patch,
+                          bump_prerelease, cmd_bump, cmd_check, cmd_compare,
+                          cmd_nextver, compare, createparser, finalize_version,
+                          format_version, main, match, max_ver, min_ver, parse,
+                          parse_version_info, process, replace)
 from .version import Version, VersionInfo
-from .__about__ import (
-    __version__,
-    __author__,
-    __maintainer__,
-    __author_email__,
-    __description__,
-    __maintainer_email__,
-    SEMVER_SPEC_VERSION,
-)
diff --git a/src/semver/_deprecated.py b/src/semver/_deprecated.py
index 5f51c8f3..5407781a 100644
--- a/src/semver/_deprecated.py
+++ b/src/semver/_deprecated.py
@@ -7,11 +7,11 @@
 import warnings
 from functools import partial, wraps
 from types import FrameType
-from typing import Type, Callable, Optional, cast
+from typing import Callable, Optional, Type, cast
 
 from . import cli
-from .version import Version
 from ._types import Decorator, F, String
+from .version import Version
 
 
 def deprecated(
diff --git a/src/semver/_types.py b/src/semver/_types.py
index 7afb6ff0..0678042d 100644
--- a/src/semver/_types.py
+++ b/src/semver/_types.py
@@ -1,7 +1,7 @@
 """Typing for semver."""
 
 from functools import partial
-from typing import Union, Optional, Tuple, Dict, Iterable, Callable, TypeVar
+from typing import Callable, Dict, Iterable, Optional, Tuple, TypeVar, Union
 
 VersionPart = Union[int, Optional[str]]
 VersionTuple = Tuple[int, int, int, Optional[str], Optional[str]]
diff --git a/src/semver/cli.py b/src/semver/cli.py
index 3c573d63..7de2ffb4 100644
--- a/src/semver/cli.py
+++ b/src/semver/cli.py
@@ -12,10 +12,10 @@
 
 import argparse
 import sys
-from typing import cast, List, Optional
+from typing import List, Optional, cast
 
-from .version import Version
 from .__about__ import __version__
+from .version import Version
 
 
 def cmd_bump(args: argparse.Namespace) -> str:
diff --git a/src/semver/version.py b/src/semver/version.py
index 04e7faae..53ef275a 100644
--- a/src/semver/version.py
+++ b/src/semver/version.py
@@ -3,26 +3,11 @@
 import collections
 import re
 from functools import wraps
-from typing import (
-    Any,
-    Dict,
-    Iterable,
-    Optional,
-    SupportsInt,
-    Tuple,
-    Union,
-    cast,
-    Callable,
-    Collection,
-)
-
-from ._types import (
-    VersionTuple,
-    VersionDict,
-    VersionIterator,
-    String,
-    VersionPart,
-)
+from typing import (Any, Callable, Collection, Dict, Iterable, Optional,
+                    SupportsInt, Tuple, Union, cast)
+
+from ._types import (String, VersionDict, VersionIterator, VersionPart,
+                     VersionTuple)
 
 # These types are required here because of circular imports
 Comparable = Union["Version", Dict[str, VersionPart], Collection[VersionPart], str]
diff --git a/tests/coerce.py b/tests/coerce.py
index e79106a2..75eaff06 120000
--- a/tests/coerce.py
+++ b/tests/coerce.py
@@ -1 +1 @@
-../docs/advanced/coerce.py
\ No newline at end of file
+../docs/advanced/coerce.py
diff --git a/tests/conftest.py b/tests/conftest.py
index beecffc9..548afc07 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,15 +1,14 @@
 import sys
 
+import packaging.version
 import pytest
+from coerce import coerce  # noqa:E402
+from semverwithvprefix import SemVerWithVPrefix  # noqa:E402
 
 import semver
 
 # sys.path.insert(0, "docs/usage")
 
-from coerce import coerce  # noqa:E402
-from semverwithvprefix import SemVerWithVPrefix  # noqa:E402
-import packaging.version
-
 
 @pytest.fixture(autouse=True)
 def add_semver(doctest_namespace):
diff --git a/tests/test_bump.py b/tests/test_bump.py
index c28e1905..6e652ca7 100644
--- a/tests/test_bump.py
+++ b/tests/test_bump.py
@@ -1,13 +1,7 @@
 import pytest
 
-from semver import (
-    bump_build,
-    bump_major,
-    bump_minor,
-    bump_patch,
-    bump_prerelease,
-    parse_version_info,
-)
+from semver import (bump_build, bump_major, bump_minor, bump_patch,
+                    bump_prerelease, parse_version_info)
 
 
 def test_should_bump_major():
diff --git a/tests/test_deprecated_functions.py b/tests/test_deprecated_functions.py
index 0b5123cc..59863b01 100644
--- a/tests/test_deprecated_functions.py
+++ b/tests/test_deprecated_functions.py
@@ -2,29 +2,11 @@
 
 import pytest
 
-from semver import (
-    parse,
-    parse_version_info,
-    compare,
-    match,
-    max_ver,
-    min_ver,
-    format_version,
-    bump_major,
-    bump_minor,
-    bump_patch,
-    bump_prerelease,
-    bump_build,
-    finalize_version,
-    replace,
-    cmd_bump,
-    cmd_compare,
-    cmd_check,
-    cmd_nextver,
-    createparser,
-    process,
-    main,
-)
+from semver import (bump_build, bump_major, bump_minor, bump_patch,
+                    bump_prerelease, cmd_bump, cmd_check, cmd_compare,
+                    cmd_nextver, compare, createparser, finalize_version,
+                    format_version, main, match, max_ver, min_ver, parse,
+                    parse_version_info, process, replace)
 from semver._deprecated import deprecated
 
 
diff --git a/tests/test_pysemver-cli.py b/tests/test_pysemver-cli.py
index e783a0b4..2f365f59 100644
--- a/tests/test_pysemver-cli.py
+++ b/tests/test_pysemver-cli.py
@@ -4,15 +4,8 @@
 
 import pytest
 
-from semver import (
-    cmd_bump,
-    cmd_check,
-    cmd_compare,
-    cmd_nextver,
-    createparser,
-    main,
-    __main__,
-)
+from semver import (__main__, cmd_bump, cmd_check, cmd_compare, cmd_nextver,
+                    createparser, main)
 
 
 @contextmanager
diff --git a/tests/test_typeerror-274.py b/tests/test_typeerror-274.py
index 326304b8..9a84ff5a 100644
--- a/tests/test_typeerror-274.py
+++ b/tests/test_typeerror-274.py
@@ -1,4 +1,5 @@
 import pytest
+
 import semver