diff --git a/.github/workflows/deploy-docs.yml b/.github/workflows/deploy-docs.yml
index c0d8bf7..8f17a98 100644
--- a/.github/workflows/deploy-docs.yml
+++ b/.github/workflows/deploy-docs.yml
@@ -26,18 +26,17 @@ jobs:
         init-shell: bash
         create-args: >-
           python=3 pip
-          --file requirements.txt
           --file requirements-dev.txt
           --channel conda-forge
 
     - name: Install on pyobis
       shell: bash -l {0}
       run: |
-        python -m pip install -e . --no-deps --force-reinstall
+        python -m pip install -e . --force-reinstall
 
     - name: Get the version
       id: get_version
-      run: echo ::set-output name=VERSION::$(python setup.py --version)
+      run: echo "VERSION=$(python -c "from importlib.metadata import version; print(version('pyobis'))")" >> $GITHUB_OUTPUT
 
     - name: Build documentation
       shell: bash -l {0}
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index b9231d0..ec129d6 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.10", "3.11", "3.12","3.13","3.14"]
         os: [windows-latest, ubuntu-latest, macos-latest]
       fail-fast: false
 
@@ -21,14 +21,13 @@ jobs:
         init-shell: bash
         create-args: >-
           python=${{ matrix.python-version }} pip
-          --file requirements.txt
           --file requirements-dev.txt
           --channel conda-forge
 
     - name: Install on pyobis
       shell: bash -l {0}
       run: |
-        python -m pip install -e . --no-deps --force-reinstall
+        python -m pip install -e . --force-reinstall
 
     - name: Run Unit Tests
       shell: bash -l {0}
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index dffce3e..b830242 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -39,9 +39,8 @@ System prerequisites: python3
 git clone git@github.com:iobis/pyobis.git
 cd pyobis
 # install
-python -m pip install -r requirements.txt
-python -m pip install -r requirements-dev.txt
 python -m pip install -e .
+python -m pip install -r requirements-dev.txt
 # test your installation
 python -m pytest
 # test and generate a coverage report
diff --git a/pyproject.toml b/pyproject.toml
index 7150f71..af67483 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,42 @@
 [build-system]
 requires = ["setuptools>=41.2", "setuptools_scm", "wheel"]
 build-backend = "setuptools.build_meta"
+
+[project]
+name = "pyobis"
+dynamic = ["version"]
+description = "Python client for OBIS"
+readme = "README.md"
+requires-python = ">=3.10"
+license = {text = "MIT"}
+authors = [
+    {name = "pyOBIS Community", email = "pyobis-mailing-list@googlegroups.com"}
+]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+    "Natural Language :: English",
+    "Programming Language :: Python :: 3",
+    "Topic :: Scientific/Engineering :: Bio-Informatics",
+]
+dependencies = [
+    "pandas",
+    "requests>=2.7",
+    "requests-cache>=1.2.0,<2.0.0",
+    "urllib3<2.0.0",
+]
+
+[project.urls]
+Documentation = "https://iobis.github.io/pyobis"
+"Bug Tracker" = "https://github.com/iobis/pyobis"
+"Source Code" = "https://github.com/iobis/pyobis"
+
+[tool.setuptools]
+packages = ["pyobis"]
+
+[tool.setuptools_scm]
+write_to = "pyobis/_version.py"
+write_to_template = '__version__ = "{version}"'
+tag_regex = "^(?P<prefix>v)?(?P<version>[^\\+]+)(?P<suffix>.*)?$"
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index c0ec947..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-pandas
-requests>=2.7
-requests-cache>=1.2.0,<2.0.0
-urllib3<2.0.0
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 6e51a67..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,34 +0,0 @@
-# This file is used to configure your project.
-# Read more about the various options under:
-# http://setuptools.readthedocs.io/en/latest/setuptools.html#configuring-setup-using-setup-cfg-files
-
-[metadata]
-name = pyobis
-description = Python client for OBIS
-author = pyOBIS Community
-author_email = pyobis-mailing-list@googlegroups.com
-url = https://github.com/iobis/pyobis
-long_description_content_type = text/markdown
-long_description = file: README.md
-license = MIT
-license-file = LICENSE
-project_urls =
-    Documentation = https://iobis.github.io/pyobis
-    Bug Tracker = https://github.com/iobis/pyobis
-    Source Code = https://github.com/iobis/pyobis
-classifiers =
-    Development Status :: 5 - Production/Stable
-    Intended Audience :: Science/Research
-    License :: OSI Approved :: MIT License
-    Operating System :: OS Independent
-    Natural Language :: English
-    Programming Language :: Python :: 3
-    Topic :: Scientific/Engineering :: Bio-Informatics
-
-[options]
-install_requires =
-    requests>2.7
-    pandas
-    requests-cache>=1.2.0,<2.0.0
-python_requires = >=3.7
-packages = find:
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 3071fac..0000000
--- a/setup.py
+++ /dev/null
@@ -1,12 +0,0 @@
-from setuptools import setup
-
-setup(
-    # The package metadata is specified in setup.cfg but GitHub's downstream dependency graph
-    # does not work unless we put the name this here too.
-    name="pyobis",
-    use_scm_version={
-        "write_to": "pyobis/_version.py",
-        "write_to_template": '__version__ = "{version}"',
-        "tag_regex": r"^(?P<prefix>v)?(?P<version>[^\+]+)(?P<suffix>.*)?$",
-    },
-)