diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..9050687
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,41 @@
+[build-system]
+build-backend = "flit_core.buildapi"
+requires = ["flit_core >=3.8.0,<4"]
+
+[project]
+name = "tiramisu_cmdline_parser"
+version = "0.5.0"
+authors = [
+    {name = "Emmanuel Garette", email = "gnunux@gnunux.info"},
+]
+readme = "README.md"
+description = "command-line parser using Tiramisu"
+license = {file = "LICENSE"}
+classifiers = [
+    "License :: OSI Approved :: GNU Library or Lesser General Public License (LGPL)",
+    "Programming Language :: Python",
+    "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",
+    "Programming Language :: Python :: 3",
+    "Operating System :: OS Independent",
+    "Natural Language :: English",
+    "Natural Language :: French",
+
+]
+
+dependencies = [
+    "tiramisu ~= 5.0.0",
+]
+
+[project.urls]
+Home = "https://forge.cloud.silique.fr/stove/tiramisu-cmdline-parser"
+
+[tool.commitizen]
+name = "cz_conventional_commits"
+tag_format = "$version"
+version_scheme = "pep440"
+version_provider = "pep621"
+update_changelog_on_bump = true
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 1b26576..0000000
--- a/setup.py
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-from setuptools import setup, find_packages
-import os
-from tiramisu_cmdline_parser import __version__
-
-
-PACKAGE_NAME = os.environ.get('PACKAGE_DST', 'tiramisu_cmdline_parser')
-
-setup(
-    version=__version__,
-    author="Tiramisu's team",
-    author_email='gnunux@gnunux.info',
-    name=PACKAGE_NAME,
-    description="command-line parser using Tiramisu.",
-	url='https://framagit.org/tiramisu/tiramisu-cmdline-parser',
-    license='GNU Library or Lesser General Public License (LGPL)',
-    install_requires=["tiramisu>=5.0"],
-	classifiers=[
-        "Programming Language :: Python :: 3",
-        "License :: OSI Approved :: GNU Library or Lesser General Public License (LGPL)",
-        "Operating System :: OS Independent",
-	    "Natural Language :: English",
-        "Natural Language :: French",
-	    ],
-	long_description="""\
-tiramisu-cmdline-parser
----------------------------------
-
-Python3 parser for command-line options and arguments using Tiramisu engine.
-""",
-    include_package_data=True,
-    packages=find_packages(include=['tiramisu_cmdline_parser'])
-)
diff --git a/tiramisu_cmdline_parser/__init__.py b/tiramisu_cmdline_parser/__init__.py
index 38b03dc..dfc2aa9 100644
--- a/tiramisu_cmdline_parser/__init__.py
+++ b/tiramisu_cmdline_parser/__init__.py
@@ -1,3 +1,18 @@
+# Copyright (C) 2018-2019 Team tiramisu (see AUTHORS for all contributors)
+#
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published by the
+# Free Software Foundation, either version 3 of the License, or (at your
+# option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+from typing import Union, List, Dict, Tuple, Optional, Any
 try:
     from .api import TiramisuCmdlineParser
 except ImportError as err: