diff --git a/.circleci/config.yml b/.circleci/config.yml
index 53d5786..6889b9f 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -11,7 +11,7 @@ jobs:
       - checkout
       - run:
           name: install dependencies
-          command: pip3 install -r requirements.txt -r test-requirements.txt --user
+          command: pip3 install --user .[dev]
       - run:
           name: confirm black version
           command: black --version
@@ -33,7 +33,7 @@ jobs:
       - checkout
       - run:
           name: install dependencies
-          command: pip3 install -r requirements.txt --user
+          command: pip3 install --user .
       - run:
           name: run tests
           command: python -m unittest
@@ -60,7 +60,7 @@ jobs:
       - run:
           name: install dependencies
           command: >
-            pip3 install --user -r requirements.txt -r test-requirements.txt
+            pip3 install --user .[dev]
       - run:
           name: check version
           command: |
@@ -92,7 +92,7 @@ jobs:
           at: ~/openbas-client
       - run:
           name: install dependencies
-          command: pip3 install -r requirements.txt --user
+          command: pip3 install --user .
       - run:
           name: install twine
           command: pip3 install twine
diff --git a/pyproject.toml b/pyproject.toml
index 0b6fae5..cb102a3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,77 @@
+[project]
+name = "pyobas"
+dynamic = ["version"]
+description = "Python API client for OpenBAS."
+authors = [
+    {name = "Filigran", email = "contact@filigran.io"}
+    ]
+maintainers = [
+    {name = "Filigran", email = "contact@filigran.io"}
+    ]
+license = { text = "Apache-2.0" }
+readme = "README.md"
+requires-python = ">=3.11"
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Developers",
+    "Intended Audience :: Information Technology",
+    "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: Apache Software License",
+    "Natural Language :: English",
+    "Natural Language :: French",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python :: 3",
+    "Topic :: Security",
+    "Topic :: Software Development :: Libraries :: Python Modules"
+]
+dependencies = [
+    "datefinder (>=0.7.3,<0.8)",
+    "pika (>=1.3.0,<1.4.0)",
+    "python-magic (>=0.4.27,<0.5); sys_platform == 'linux' or sys_platform == 'darwin'",
+    "python-magic-bin (>=0.4.14,<0.5); sys_platform == 'win32'",
+    "python_json_logger (>=3.3.0,<3.4.0)",
+    "PyYAML (>=6.0,<6.1)",
+    "pydantic (>=2.11.3,<2.12.0)",
+    "requests (>=2.32.3,<2.33.0)",
+    "setuptools (>=80.4.0,<80.5.0)",
+    "cachetools (>=5.5.0,<5.6.0)",
+    "prometheus-client (>=0.21.1,<0.22.0)",
+    "opentelemetry-api (>=1.32.0,<1.33.0)",
+    "opentelemetry-sdk (>=1.32.0,<1.33.0)",
+    # OpenBAS,
+    "requests-toolbelt (>=1.0.0,<1.1.0)",
+    "dataclasses-json (>=0.6.4,<0.7.0)",
+    "thefuzz (>=0.22,<0.23)"
+]
+
+[project.optional-dependencies]
+dev = [
+    "black (>=25.1.0,<25.2.0)",
+    "build (>=1.2.1,<1.3.0)",
+    "isort (>=6.0.0,<6.1.0)",
+    "types-pytz (>=2025.2.0.20250326,<2025.3.0.0)",
+    "pre-commit (>=4.2.0,<4.3.0)",
+    "types-python-dateutil (>=2.9.0,<2.10.0)",
+    "wheel (>=0.45.1,<0.46.0)"
+]
+doc = [
+    "autoapi (>=2.0.1,<2.1.0)",
+    "sphinx-autodoc-typehints (>=3.2.0,<3.3.0)",
+    "sphinx-rtd-theme (>=3.0.2,<3.1.0)"
+]
+
 [build-system]
 requires = ["setuptools", "wheel"]
 build-backend = "setuptools.build_meta"
 
+[tool.setuptools]
+include-package-data = true
+
+[tool.setuptools.packages.find]
+
+[tool.setuptools.dynamic]
+version = { attr = "pyobas.__version__" }
+
 [tool.isort]
 profile = "black"
 
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 0acbd58..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-# Filigran
-datefinder~=0.7.3
-pika~=1.3.0
-python-magic~=0.4.27; sys_platform == 'linux' or sys_platform == 'darwin'
-python-magic-bin~=0.4.14; sys_platform == 'win32'
-python_json_logger~=3.3.0
-PyYAML~=6.0
-pydantic~=2.11.3
-requests~=2.32.3
-setuptools~=80.4.0
-cachetools~=5.5.0
-prometheus-client~=0.21.1
-opentelemetry-api~=1.32.0
-opentelemetry-sdk~=1.32.0
-# OpenBAS
-requests-toolbelt~=1.0.0
-dataclasses-json~=0.6.4
-thefuzz~=0.22
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index fac9625..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,71 +0,0 @@
-[metadata]
-name = pyobas
-version = attr: pyobas.__version__
-author = Filigran
-author_email = contact@filigran.io
-maintainer = Filigran
-url = https://github.com/OpenBAS-Platform/client-python
-description = Python API client for OpenBAS.
-long_description = file: README.md
-long_description_content_type = text/markdown
-license = Apache
-classifiers =
-    Development Status :: 5 - Production/Stable
-    Intended Audience :: Developers
-    Intended Audience :: Information Technology
-    Intended Audience :: Science/Research
-    License :: OSI Approved :: Apache Software License
-    Natural Language :: English
-    Natural Language :: French
-    Operating System :: OS Independent
-    Programming Language :: Python :: 3
-    Topic :: Security
-    Topic :: Software Development :: Libraries :: Python Modules
-
-[options]
-python_requires = >=3.7
-packages =
-    pyobas
-    pyobas.apis
-    pyobas.apis.inject_expectation
-    pyobas.apis.inject_expectation.model
-    pyobas.backends
-    pyobas.configuration
-    pyobas.contracts
-    pyobas.daemons
-    pyobas.signatures
-
-include_package_data = True
-install_requires =
-    # Filigran
-    datefinder~=0.7.3
-    pika~=1.3.0
-    python-magic~=0.4.27; sys_platform == 'linux' or sys_platform == 'darwin'
-    python-magic-bin~=0.4.14; sys_platform == 'win32'
-    python_json_logger~=3.3.0
-    PyYAML~=6.0
-    pydantic~=2.11.3
-    requests~=2.32.3
-    setuptools~=80.4.0
-    cachetools~=5.5.0
-    prometheus-client~=0.21.1
-    opentelemetry-api~=1.32.0
-    opentelemetry-sdk~=1.32.0
-    # OpenBAS
-    requests-toolbelt~=1.0.0
-    dataclasses-json~=0.6.4
-    thefuzz~=0.22
-
-[options.extras_require]
-dev =
-    black~=25.1.0
-    build~=1.2.1
-    isort~=6.0.0
-    types-pytz~=2025.2.0.20250326
-    pre-commit~=4.2.0
-    types-python-dateutil~=2.9.0
-    wheel~=0.45.1
-doc =
-    autoapi~=2.0.1
-    sphinx-autodoc-typehints~=3.2.0
-    sphinx-rtd-theme~=3.0.2
diff --git a/test-requirements.txt b/test-requirements.txt
deleted file mode 100644
index eed11d1..0000000
--- a/test-requirements.txt
+++ /dev/null
@@ -1,13 +0,0 @@
-black==25.1.0
-isort>=5.10
-build>=0.7
-isort>=5.10
-pre-commit~=4.1
-pytest~=8.1
-pytest-cases~=3.6
-pytest-cov~=6.1
-pytest_randomly~=3.8
-types-python-dateutil>=2.8
-types-pytz>=2021.3.5
-wheel~=0.36
-thefuzz~=0.22
\ No newline at end of file