diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..8549bb9
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,4 @@
+
+# Align TOML indenting with Tombi
+[*.toml]
+indent_size = 2
diff --git a/.github/workflows/pypi-release.yml b/.github/workflows/pypi-release.yml
index 8db76da..3f61945 100644
--- a/.github/workflows/pypi-release.yml
+++ b/.github/workflows/pypi-release.yml
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 #
 # This file is part of Invenio.
-# Copyright (C) 2020 CERN.
+# Copyright (C) 2020-2025 CERN.
 #
 # Invenio is free software; you can redistribute it and/or modify it
 # under the terms of the MIT License; see LICENSE file for more details
@@ -15,28 +15,5 @@ on:
 
 jobs:
   Publish:
-    runs-on: ubuntu-20.04
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-
-      - name: Set up Python
-        uses: actions/setup-python@v2
-        with:
-          python-version: 3.8
-
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install setuptools wheel
-
-      - name: Build package
-        run: python setup.py sdist bdist_wheel
-
-      - name: Publish on PyPI
-        uses: pypa/gh-action-pypi-publish@v1.3.1
-        with:
-          user: __token__
-          # The token is provided by the inveniosoftware organization
-          password: ${{ secrets.pypi_token }}
+    uses: inveniosoftware/workflows/.github/workflows/pypi-publish.yml@master
+    secrets: inherit
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index c7cd003..5fe1cc9 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -24,40 +24,5 @@ on:
         default: 'Manual trigger'
 
 jobs:
-  Tests:
-    runs-on: ubuntu-20.04
-    strategy:
-      matrix:
-          python-version: [3.5, 3.6, 3.7, 3.8, 3.9]
-          requirements-level: [min, pypi]
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-
-      - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
-        with:
-          python-version: ${{ matrix.python-version }}
-
-      - name: Generate dependencies
-        run: |
-          sudo apt-get install libxml2-dev libxslt1-dev
-          python -m pip install --upgrade pip setuptools py wheel requirements-builder
-          requirements-builder -e all --level=${{ matrix.requirements-level }} setup.py > .${{ matrix.requirements-level }}-${{ matrix.python-version }}-requirements.txt
-
-      - name: Cache pip
-        uses: actions/cache@v2
-        with:
-          path: ~/.cache/pip
-          key: ${{ runner.os }}-pip-${{ hashFiles('.${{ matrix.requirements-level }}-${{ matrix.python-version }}-requirements.txt') }}
-
-      - name: Install dependencies
-        run: |
-          pip install -r .${{ matrix.requirements-level }}-${{ matrix.python-version }}-requirements.txt
-          pip install .[all]
-          pip freeze
-
-      - name: Run tests
-        run: |
-          ./run-tests.sh
+  Python:
+    uses: inveniosoftware/workflows/.github/workflows/tests-python.yml@master
diff --git a/.gitignore b/.gitignore
index 3aca7a5..4a534f5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,4 @@ docs/_build
 docs/db
 docs/static
 htmlcov
+uv.lock
diff --git a/MANIFEST.in b/MANIFEST.in
deleted file mode 100644
index c6b08d7..0000000
--- a/MANIFEST.in
+++ /dev/null
@@ -1,12 +0,0 @@
-# SPDX-FileCopyrightText: 2014, 2016 CERN.
-# SPDX-License-Identifier: MIT
-
-exclude .git-blame-ignore-revs
-include README.rst CHANGES CONTRIBUTING.rst AUTHORS LICENSE MANIFEST.in
-include RELEASE-NOTES.rst
-include .coveragerc pytest.ini
-include .lgtm MAINTAINERS
-include docs/*.rst docs/*.py docs/Makefile docs/requirements.txt
-include *.py *.sh
-include tox.ini tests/*.py
-recursive-include .github/workflows *.yml
diff --git a/dictdiffer/__init__.py b/dictdiffer/__init__.py
index debd78a..230ff9b 100644
--- a/dictdiffer/__init__.py
+++ b/dictdiffer/__init__.py
@@ -5,8 +5,7 @@
 
 """Dictdiffer is a helper module to diff and patch dictionaries."""
 
-from collections.abc import (Iterable, MutableMapping, MutableSequence,
-                             MutableSet)
+from collections.abc import Iterable, MutableMapping, MutableSequence, MutableSet
 from copy import deepcopy
 
 from .utils import EPSILON, PathLimit, are_different, dot_lookup
@@ -71,7 +70,7 @@ def diff(first, second, node=None, ignore=None, path_limit=None, expand=False,
     ...           path_limit=PathLimit([('a', 'b')])))
     [('add', '', [('a', {})]), ('add', 'a', [('b', 'c')])]
 
-     >>> from dictdiffer.utils import PathLimit
+    >>> from dictdiffer.utils import PathLimit
     >>> list(diff({'a': {'b': 'c'}}, {'a': {'b': 'c'}}, path_limit=PathLimit([('a',)])))
     []
 
diff --git a/dictdiffer/version.py b/dictdiffer/version.py
index b1df833..59a7cfc 100644
--- a/dictdiffer/version.py
+++ b/dictdiffer/version.py
@@ -1,8 +1,7 @@
-# SPDX-FileCopyrightText: 2014-2021 CERN.
-# SPDX-License-Identifier: MIT
-
+# -*- coding: utf-8 -*-
 # Do not change the format of this next line. Doing so risks breaking
 # setup.py and docs/conf.py
+
 """Version information for dictdiffer package."""
 
-__version__ = '0.9.0'
+__version__ = "0.9.0"
diff --git a/docs/conf.py b/docs/conf.py
index 4df8b04..c86258f 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -19,16 +19,7 @@
 
 import sys
 
-from pkg_resources import get_distribution
-
-_html_theme = "sphinx_rtd_theme"
-_html_theme_path = []
-try:
-    import sphinx_rtd_theme
-    _html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
-except ImportError:
-    print("Template {0} not found, pip install it", file=sys.stderr)
-    _html_theme = "default"
+from dictdiffer import __version__
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
@@ -74,10 +65,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = get_distribution('dictdiffer').version
 
 # The full version, including alpha/beta/rc tags.
-release = version
+release = __version__
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -122,8 +112,7 @@
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-#html_theme = 'default'
-html_theme = _html_theme
+html_theme = 'default'
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
@@ -132,7 +121,6 @@
 
 # Add any paths that contain custom themes here, relative to this directory.
 #html_theme_path = []
-html_theme_path = _html_theme_path
 
 # The name for this set of Sphinx documents.  If None, it defaults to
 # "<project> v<release> documentation".
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..e6a711b
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,77 @@
+# SPDX-FileCopyrightText: 2013 Fatih Erikli.
+# SPDX-FileCopyrightText: 2014, 2015, 2016 CERN.
+# SPDX-FileCopyrightText: 2016 CERN.
+# SPDX-FileCopyrightText: 2017, 2019 ETH Zurich, Swiss Data Science Center, Jiri Kuncar.
+# SPDX-FileCopyrightText: 2026 TU Wien.
+# SPDX-License-Identifier: MIT
+
+[project]
+name = "dictdiffer"
+description = "Dictdiffer is a library that helps you to diff and patch dictionaries."
+readme = "README.rst"
+requires-python = ">=3.7"
+license = "MIT"
+authors = [
+  { name = "Invenio Collaboration", email = "info@inveniosoftware.org" },
+]
+classifiers = [
+  "Development Status :: 5 - Production/Stable",
+  "Intended Audience :: Developers",
+  "License :: OSI Approved :: MIT License",
+  "Operating System :: OS Independent",
+  "Programming Language :: Python :: 3",
+  "Programming Language :: Python :: 3.5",
+  "Programming Language :: Python :: 3.6",
+  "Programming Language :: Python :: 3.7",
+  "Programming Language :: Python :: 3.8",
+  "Programming Language :: Python :: 3.9",
+  "Topic :: Utilities",
+]
+dynamic = ["version"]
+
+[project.urls]
+Changelog = "https://github.com/inveniosoftware/dictdiffer/blob/master/CHANGES"
+Docs = "https://dictdiffer.rtfd.io/"
+Homepage = "https://github.com/inveniosoftware/dictdiffer"
+
+[project.optional-dependencies]
+docs = [
+  "sphinx-rtd-theme>=0.2",
+  "sphinx>=3",
+]
+numpy = [
+  "numpy>=1.20.0",
+]
+tests = [
+  "mock>=1.3.0",
+  "pycodestyle>=2.10.0",
+  "pytest-cov>=2.10.1",
+  "pytest-isort>=1.2.0",
+  "pytest-pydocstyle>=2.2.0",
+  "pytest>=6,<9",
+  "sphinx>=3",
+  "tox>=3.7.0",
+]
+
+[build-system]
+requires = ["hatch-vcs", "hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.version]
+path = "dictdiffer/version.py"
+
+[tool.hatch.build.targets.sdist]
+include = [
+  "/dictdiffer",
+]
+
+[tool.isort]
+profile = "black"
+
+[tool.pydocstyle]
+add_ignore = ""
+
+[tool.pytest.ini_options]
+addopts = '--isort --pydocstyle --doctest-glob="*.rst" --doctest-modules --cov=dictdiffer --cov-report=term-missing'
+testpaths = "tests dictdiffer"
+live_server_scope = "module"
diff --git a/pytest.ini b/pytest.ini
deleted file mode 100644
index 7f89147..0000000
--- a/pytest.ini
+++ /dev/null
@@ -1,7 +0,0 @@
-# SPDX-FileCopyrightText: 2014, 2016 CERN.
-# SPDX-License-Identifier: MIT
-
-[pytest]
-addopts = --isort --pydocstyle --pycodestyle --doctest-glob="*.rst" --doctest-modules --cov=dictdiffer --cov-report=term-missing
-testpaths = tests dictdiffer
-filterwarnings = ignore::pytest.PytestDeprecationWarning
diff --git a/run-tests.sh b/run-tests.sh
index b360946..86d3e2e 100755
--- a/run-tests.sh
+++ b/run-tests.sh
@@ -10,7 +10,7 @@ set -o errexit
 # Quit on unbound symbols
 set -o nounset
 
-python -m check_manifest --ignore ".*-requirements.txt"
 python -m sphinx.cmd.build -qnNW docs docs/_build/html
 python -m pytest
 python -m sphinx.cmd.build -qnNW -b doctest docs docs/_build/doctest
+pycodestyle --ignore=E501,E226,W504 dictdiffer
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 05ddca3..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,13 +0,0 @@
-# SPDX-FileCopyrightText: 2016 CERN.
-# SPDX-License-Identifier: MIT
-
-[aliases]
-test = pytest
-
-[build_sphinx]
-source-dir = docs/
-build-dir = docs/_build
-all_files = 1
-
-[bdist_wheel]
-universal = 1
diff --git a/setup.py b/setup.py
deleted file mode 100644
index e7dd20a..0000000
--- a/setup.py
+++ /dev/null
@@ -1,105 +0,0 @@
-# SPDX-FileCopyrightText: 2013 Fatih Erikli.
-# SPDX-FileCopyrightText: 2014, 2015, 2016 CERN.
-# SPDX-FileCopyrightText: 2017, 2019 ETH Zurich, Swiss Data Science Center, Jiri Kuncar.
-# SPDX-License-Identifier: MIT
-
-"""Dictdiffer is a library that helps you to diff and patch dictionaries."""
-
-from __future__ import absolute_import, print_function
-
-import os
-
-from setuptools import find_packages, setup
-
-readme = open('README.rst').read()
-
-tests_require = [
-    'check-manifest>=0.42',
-    'mock>=1.3.0',
-    'pytest==5.4.3;python_version<="3.5"',
-    'pytest>=6;python_version>"3.5"',
-    'pytest-cov>=2.10.1',
-    'pytest-isort>=1.2.0',
-    'pytest-pycodestyle>=2;python_version<="3.5"',
-    'pytest-pycodestyle>=2.2.0;python_version>"3.5"',
-    'pytest-pydocstyle>=2;python_version<="3.5"',
-    'pytest-pydocstyle>=2.2.0;python_version>"3.5"',
-    'sphinx>=3',
-    'tox>=3.7.0',
-]
-
-extras_require = {
-    'docs': [
-        'Sphinx>=3',
-        'sphinx-rtd-theme>=0.2',
-    ],
-    'numpy': [
-        'numpy>=1.13.0;python_version<"3.7"',
-        'numpy>=1.15.0;python_version<"3.8"',
-        'numpy>=1.18.0;python_version<"3.9"',
-        'numpy>=1.20.0;python_version>="3.9"',
-    ],
-    'tests': tests_require,
-}
-
-extras_require['all'] = []
-for key, reqs in extras_require.items():
-    if ':' == key[0]:
-        continue
-    extras_require['all'].extend(reqs)
-
-setup_requires = [
-    'pytest-runner>=2.7',
-    'setuptools_scm>=3.1.0',
-]
-
-packages = find_packages()
-
-version_template = """\
-# -*- coding: utf-8 -*-
-# Do not change the format of this next line. Doing so risks breaking
-# setup.py and docs/conf.py
-\"\"\"Version information for dictdiffer package.\"\"\"
-
-__version__ = {version!r}
-"""
-
-setup(
-    name='dictdiffer',
-    use_scm_version={
-        'local_scheme': 'dirty-tag',
-        'write_to': os.path.join('dictdiffer', 'version.py'),
-        'write_to_template': version_template,
-    },
-    description=__doc__,
-    long_description=readme,
-    author='Invenio Collaboration',
-    author_email='info@inveniosoftware.org',
-    url='https://github.com/inveniosoftware/dictdiffer',
-    project_urls={
-        'Changelog': (
-            'https://github.com/inveniosoftware/dictdiffer'
-            '/blob/master/CHANGES'
-        ),
-        'Docs': 'https://dictdiffer.rtfd.io/',
-    },
-    packages=['dictdiffer'],
-    zip_safe=False,
-    python_requires='>=3.5',
-    extras_require=extras_require,
-    setup_requires=setup_requires,
-    tests_require=tests_require,
-    classifiers=[
-        'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.5',
-        'Programming Language :: Python :: 3.6',
-        'Programming Language :: Python :: 3.7',
-        'Programming Language :: Python :: 3.8',
-        'Programming Language :: Python :: 3.9',
-        'Development Status :: 5 - Production/Stable',
-        'Intended Audience :: Developers',
-        'License :: OSI Approved :: MIT License',
-        'Operating System :: OS Independent',
-        'Topic :: Utilities',
-    ],
-)
diff --git a/tests/test_resolve.py b/tests/test_resolve.py
index 9cc36c5..6926acd 100644
--- a/tests/test_resolve.py
+++ b/tests/test_resolve.py
@@ -4,8 +4,11 @@
 import unittest
 
 from dictdiffer.conflict import Conflict
-from dictdiffer.resolve import (NoFurtherResolutionException, Resolver,
-                                UnresolvedConflictsException)
+from dictdiffer.resolve import (
+    NoFurtherResolutionException,
+    Resolver,
+    UnresolvedConflictsException,
+)
 
 
 class UnresolvedConflictsExceptionTest(unittest.TestCase):
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 8f9c444..fd2cbd9 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -3,8 +3,15 @@
 
 import unittest
 
-from dictdiffer.utils import (PathLimit, WildcardDict, create_dotted_node,
-                              dot_lookup, get_path, is_super_path, nested_hash)
+from dictdiffer.utils import (
+    PathLimit,
+    WildcardDict,
+    create_dotted_node,
+    dot_lookup,
+    get_path,
+    is_super_path,
+    nested_hash,
+)
 
 
 class UtilsTest(unittest.TestCase):
diff --git a/tox.ini b/tox.ini
deleted file mode 100644
index f860c35..0000000
--- a/tox.ini
+++ /dev/null
@@ -1,14 +0,0 @@
-# SPDX-FileCopyrightText: 2014 CERN.
-# SPDX-FileCopyrightText: 2017 ETH Zurich, Swiss Data Science Center, Jiri Kuncar.
-# SPDX-License-Identifier: MIT
-
-[tox]
-envlist = py35, py36, py37, py38, py39
-
-[testenv]
-extras = numpy, tests
-commands =
-    {envpython} -m check_manifest --ignore ".*-requirements.txt"
-    {envpython} -m sphinx.cmd.build -qnNW docs docs/_build/html
-    {envpython} setup.py test
-    {envpython} -m sphinx.cmd.build -qnNW -b doctest docs docs/_build/doctest