diff --git a/pyproject.toml b/pyproject.toml
index 26d787f..a860213 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,6 +2,42 @@
 requires = ["setuptools >= 52", "setuptools_scm >= 6.2", "Cython >= 0.29.20"]
 build-backend = "setuptools.build_meta"
 
+[project]
+name = "dnaio"
+authors = [
+    {name = "Marcel Martin", email = "marcel.martin@scilifelab.se"},
+    {name = "Ruben Vorderman", email = "r.h.p.vorderman@lumc.nl"}
+]
+description = "Read and write FASTA and FASTQ files efficiently"
+readme = "README.rst"
+license = {text = "MIT"}
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: MIT License",
+    "Programming Language :: Cython",
+    "Programming Language :: Python :: 3",
+    "Topic :: Scientific/Engineering :: Bio-Informatics"
+]
+requires-python = ">3.7"
+dependencies = [
+    "xopen >= 1.4.0"
+]
+dynamic = ["version"]
+
+[project.optional-dependencies]
+dev = [
+    "Cython",
+    "pytest"
+]
+
+[project.urls]
+"Homepage" = "https://dnaio.readthedocs.io/"
+"Changelog" = "https://dnaio.readthedocs.io/en/latest/changes.html"
+
+[tool.setuptools.exclude-package-data]
+dnaio = ["*.pyx"]
+
 [tool.setuptools_scm]
 write_to = "src/dnaio/_version.py"
 
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 3b9bbbf..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,37 +0,0 @@
-[metadata]
-name = dnaio
-author = Marcel Martin
-author_email = marcel.martin@scilifelab.se
-url = https://dnaio.readthedocs.io/
-description = Read and write FASTA and FASTQ files efficiently
-long_description = file: README.rst
-long_description_content_type = text/x-rst
-license = MIT
-project_urls =
-    Changelog = https://dnaio.readthedocs.io/en/latest/changes.html
-classifiers =
-    Development Status :: 5 - Production/Stable
-    Intended Audience :: Science/Research
-    License :: OSI Approved :: MIT License
-    Programming Language :: Cython
-    Programming Language :: Python :: 3
-    Topic :: Scientific/Engineering :: Bio-Informatics
-
-[options]
-python_requires = >=3.7
-package_dir =
-    =src
-packages = find:
-install_requires =
-    xopen >= 1.4.0
-
-[options.packages.find]
-where = src
-
-[options.package_data]
-* = py.typed, *.pyi, *.h
-
-[options.extras_require]
-dev =
-    Cython
-    pytest