diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 9aed930..f51020b 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -55,10 +55,12 @@ jobs:
         if: ${{ !((matrix.python-version == '2.7') || (matrix.python-version == '3.5')) }}
         run: mypy imagehash tests/*.py --follow-imports=silent --ignore-missing-imports || true
       - name: build wheel
+        if: ${{ !((matrix.python-version == '2.7') || (matrix.python-version == '3.5')) }}
         run: python3 -m build -nwx .
       - name: Install the built wheel
+        if: ${{ !((matrix.python-version == '2.7') || (matrix.python-version == '3.5')) }}
         run: pip install --upgrade ./dist/*.whl
-      - run: coverage run -m pytest .
+      - run: coverage run -m pytest ./tests
       - name: Convert coverage output to lcov for coveralls
         # coverage-lcov requires python 3.6, so we cannot upload results
         # from python 2 and 3.5 builds :-(
diff --git a/pyproject.toml b/pyproject.toml
index b464d1d..124c56a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,44 @@
 [build-system]
-requires = ["setuptools>=42.2"]
+requires = ["setuptools>=61.2"]
 build-backend = "setuptools.build_meta"
+
+[project]
+name = "ImageHash"
+version = "4.3.0"
+authors = [{name = "Johannes Buchner", email = "buchner.johannes@gmx.at"}]
+license = {text = "BSD-2-Clause"}
+description = "Image Hashing library"
+readme = "README.rst"
+dependencies = ["numpy", "scipy", "pillow", "PyWavelets"]
+
+[project.urls]
+Homepage = "https://github.com/JohannesBuchner/imagehash"
+
+[project.optional-dependencies]
+testing = ["pytest>=3"]
+
+[tool.setuptools]
+packages = ["imagehash"]
+script-files = ["find_similar_images.py"]
+include-package-data = true
+
+[tool.setuptools.package-data]
+imagehash = ["py.typed"]
+
+[tool.distutils.bdist_wheel]
+universal = 1
+
+[tool.flake8]
+count = true
+statistics = true
+max-line-length = 127
+max-complexity = 10
+avoid-escape = true
+# This ignore differs than autopep8's ignore as to not autofix tabs to spaces, but still warn when mixed
+ignore = '''
+A001,			; variable "hash" is shadowing a python builtin
+W191,E111	; tabs are prefered indentation;
+E117			; Bug with pycodestyle for Python 2.7 where it thinks everything is over-indented with tabs'''
+per-file-ignores = """
+; False positive with multiline strings https://github.com/PyCQA/pycodestyle/issues/376
+find_similar_images.py: E101"""
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index b8d2052..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,39 +0,0 @@
-[metadata]
-name = ImageHash
-version = 4.3.0
-author = Johannes Buchner
-author_email = buchner.johannes@gmx.at
-license = BSD-2-Clause
-description = Image Hashing library
-url = https://github.com/JohannesBuchner/imagehash
-long_description = file: README.rst
-long_description_content_type = text/x-rst
-
-[bdist_wheel]
-universal = 1
-
-[options]
-packages = imagehash
-install_requires = numpy; scipy; pillow; PyWavelets
-scripts = find_similar_images.py
-test_suite = tests
-tests_require = pytest>=3
-
-[options.package_data]
-imagehash = py.typed
-
-[flake8]
-count = True
-statistics = True
-max-line-length = 127
-max-complexity = 10
-avoid-escape=True
-; This ignore differs than autopep8's ignore as to not autofix tabs to spaces, but still warn when mixed
-ignore=
-	A001,			; variable "hash" is shadowing a python builtin
-	W191,E111	; tabs are prefered indentation;
-	E117			; Bug with pycodestyle for Python 2.7 where it thinks everything is over-indented with tabs
-per-file-ignores=
-	; False positive with multiline strings https://github.com/PyCQA/pycodestyle/issues/376
-	find_similar_images.py: E101
-