diff --git a/.gitignore b/.gitignore
index 6b75afe3..dca9ff84 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,6 +15,10 @@ __pycache__
 env
 env-*
 .venv
+.venv-*
+
+# Lock files
+uv.lock
 
 # Private files
 .pypirc
diff --git a/pyproject.toml b/pyproject.toml
index 1f750584..7a913ae8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,10 +1,75 @@
-[build-system]
-requires = [
-    "setuptools>=42",
-    "wheel",
+[project]
+name = "geoengine"
+version = "0.8.0"
+authors = [{ name = "Geo Engine GmbH", email = "info@geoengine.de" }]
+description = "A package for easy access to Geo Engine instances"
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "Topic :: Database :: Front-Ends",
+    "Topic :: Scientific/Engineering :: GIS",
+    "Topic :: Software Development :: Libraries",
+    "Intended Audience :: Developers",
+    "Intended Audience :: Science/Research",
+    "Intended Audience :: Information Technology",
+]
+readme = { file = "README.md", content-type = "text/markdown" }
+license-files = ["LICENSE"]
+requires-python = ">=3.10"
+dependencies = [
+    "geoengine-openapi-client == 0.0.25",
+    "geopandas >=1.0,<2.0",
+    "matplotlib >=3.5,<3.11",
+    "numpy >=1.21,<2.4",
+    "owslib >=0.27,<0.35",
+    "pillow >=10.0,<12",
+    "pyarrow >=17.0,<21",
+    "python-dotenv >=0.19,<1.2",
+    "rasterio >=1.3,<2",
+    "requests >= 2.26,<3",
+    "rioxarray >=0.9.1, <0.20",
+    "StrEnum >=0.4.6,<0.5",               # TODO: use from stdlib when `python_requires = >=3.11`
+    "vega >= 3.5,<4.2",
+    "websockets >= 14.0,<16",
+    "xarray >=0.19,<2025.8",
+    "urllib3 >= 2.1, < 2.6",
+    "pydantic >= 2.10.6, < 2.12",
+    'skl2onnx >=1.19.1,<1.20',
+]
+
+[project.urls]
+Homepage = "https://www.geoengine.io"
+Repository = "https://github.com/geo-engine/geoengine-python"
+
+[project.optional-dependencies] # TODO: use [dependency-groups] in the future
+dev = [
+    "build >=0.7,<1.3",
+    "mypy >=1.14,<2.0",
+    "pdoc3 >=0.10,<0.12",
+    "pycodestyle >=2.8,<3",        # formatter
+    "pylint >=3.3,<4",             # code linter
+    "setuptools >=62,<81",
+    "twine >=3.4,<6.2",            # PyPI
+    "types-requests >=2.26,<3",    # mypy type hints
+    "types-setuptools >=71.1,<81", # mypy type hints
+    "wheel >=0.37,<0.46",
+]
+test = [
+    "psycopg >=3.2,<4",
+    "pytest >=6.3,<9",
+    "pytest-cov >=6.0,<7",
+    "requests_mock >=1.9,<2",
+    "scikit-learn >=1.5,<1.8",
+]
+examples = [
+    "cartopy >=0.22,<0.25",    # for WMS example
+    "ipympl >=0.9.4,<0.10",    # for ML example
+    "ipyvuetify >=1.10,<1.12", # for ML app
+    "ipywidgets >=8.1.5,<9",   # for ML example
+    "nbconvert >=7,<8",        # convert notebooks to Python
+    "scipy >=1.7,<2",          # for WMS example
+    "voila >=0.5,<0.6",        # for ML app
 ]
-build-backend = "setuptools.build_meta"
 
-[tool.pytest.ini_options]
-log_cli = true
-log_level = "INFO"
+[build-system]
+requires = ["setuptools>=62"]
+build-backend = "setuptools.build_meta"
diff --git a/setup.cfg b/setup.cfg
index 38448a5b..aad323e3 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,79 +1,4 @@
-[metadata]
-name = geoengine
-version = 0.8.0
-author = Geo Engine GmbH
-author_email = info@geoengine.de
-description = A package for easy access to Geo Engine instances
-long_description = file: README.md
-long_description_content_type = text/markdown
-url = https://github.com/geo-engine/geoengine-python
-project_urls =
-    Bug Tracker = https://github.com/geo-engine/geoengine-python
-classifiers =
-    Programming Language :: Python :: 3
-    Topic :: Database :: Front-Ends
-
-[options]
-package_dir =
-packages = find:
-python_requires = >=3.10
-install_requires =
-    geoengine-openapi-client == 0.0.25
-    geopandas >=1.0,<2.0
-    matplotlib >=3.5,<3.11
-    numpy >=1.21,<2.3
-    owslib >=0.27,<0.34
-    pillow >=10.0,<12
-    pyarrow >=17.0,<21
-    python-dotenv >=0.19,<1.2
-    rasterio >=1.3,<2
-    requests >= 2.26,<3
-    rioxarray >=0.9.1, <0.20
-    StrEnum >=0.4.6,<0.5 # TODO: use from stdlib when `python_requires = >=3.11`
-    vega >= 3.5,<4.2
-    websockets >= 14.0,<16
-    xarray >=0.19,<2025.5
-    urllib3 >= 2.1, < 2.5
-    pydantic >= 2.10.6, < 2.12
-    skl2onnx >=1.17,<2 ; python_version<"3.13"
-    skl2onnx @ git+https://github.com/onnx/sklearn-onnx@1035fdf ; python_version>="3.13" # TODO: remove when skl2onnx 1.19 is released
-    onnx == 1.17 ; python_version<"3.13" # TODO: remove when skl2onnx 1.19 is released
-    onnx == 1.18 ; python_version>="3.13" # TODO: remove when skl2onnx 1.19 is released
-
-[[onnx]]
-
-[options.extras_require]
-dev =
-    build >=0.7,<1.3
-    mypy >=1.14,<2.0
-    pdoc3 >=0.10,<0.11
-    pycodestyle >=2.8,<3 # formatter
-    pylint >=3.3,<4 # code linter
-    setuptools >=42,<81
-    twine >=3.4,<6 # PyPI
-    types-requests >=2.26,<3 # mypy type hints
-    types-setuptools >=71.1,<81 # mypy type hints
-    wheel >=0.37,<0.46
-test =
-    psycopg >=3.2,<4
-    pytest >=6.3,<9
-    pytest-cov >=6.0,<7
-    requests_mock >=1.9,<2
-    scikit-learn >=1.5,<1.7
-examples =
-    cartopy >=0.22,<0.25 # for WMS example
-    ipympl >=0.9.4,<0.10 # for ML example
-    ipyvuetify >=1.10,<1.12 # for ML app
-    ipywidgets >=8.1.5,<9  # for ML example
-    nbconvert >=7,<8 # convert notebooks to Python
-    scipy >=1.7,<2 # for WMS example
-    voila >=0.5,<0.6 # for ML app
-
-
-[options.packages.find]
-where = .
-
-[pycodestyle]
+[pycodestyle] # does not support `pyproject.toml`: https://peps.python.org/pep-0518/#sticking-with-setup-cfg
 max-line-length = 120
 ignore =
     # line length is check with pylint
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 8bf1ba93..00000000
--- a/setup.py
+++ /dev/null
@@ -1,2 +0,0 @@
-from setuptools import setup
-setup()