diff --git a/.github/workflows/build_wheels.yml b/.github/workflows/build_wheels.yml
index 7a45fec..bcd6dba 100644
--- a/.github/workflows/build_wheels.yml
+++ b/.github/workflows/build_wheels.yml
@@ -19,27 +19,26 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        # macos-13 is an intel runner, macos-14 is apple silicon
-        os: [ubuntu-latest, windows-latest, macos-13, macos-14]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-15-intel]
         arch: [native]
-        python: ["{cp38,pp*}"]
+        python: ["{cp310,pp310,pp311}"]
         # Split aarch64 across jobs because it uses emulation (slow)
         include:
           - os: ubuntu-latest
             arch: i686
-            python: "{cp38,pp*}"
+            python: "{cp310,pp310,pp311}"
           - os: ubuntu-latest
             arch: aarch64
-            python: "cp38"
+            python: "cp310"
           - os: ubuntu-latest
             arch: aarch64
-            python: "pp38"
+            python: "pp310"
           - os: ubuntu-latest
             arch: aarch64
-            python: "pp39"
+            python: "pp3{10,11}"
           - os: ubuntu-latest
             arch: aarch64
-            python: "pp310"
+            python: "pp3{10,11}"
     steps:
       - uses: actions/checkout@v4
         with:
@@ -50,23 +49,10 @@ jobs:
         with:
           platforms: all
         if: runner.os == 'Linux' && matrix.arch == 'aarch64'
-      - uses: pypa/cibuildwheel@v2.20.0
+      - uses: pypa/cibuildwheel@v3.3.0
         env:
           CIBW_ARCHS: "${{ matrix.arch }}"
           CIBW_BUILD: "${{ matrix.python }}-*"
-          CIBW_MANYLINUX_X86_64_IMAGE: "quay.io/pypa/manylinux2014_x86_64:latest"
-          CIBW_MANYLINUX_AARCH64_IMAGE: "quay.io/pypa/manylinux2014_aarch64:latest"
-          CIBW_TEST_COMMAND: "python -c \"import rtmixer; print(rtmixer.__version__)\""
-          # No portaudio on these platforms:
-          CIBW_TEST_SKIP: "*_i686 *-musllinux_* *_aarch64"
-          # To enable testing we'd have to bump up to the Almalinux 8-based image:
-          # CIBW_MANYLINUX_AARCH64_IMAGE: "manylinux_2_28"
-          CIBW_BUILD_VERBOSITY: "3"
-          CIBW_BEFORE_TEST_LINUX: "bash {project}/tools/cibw_before_test_linux.sh"
-          # Use abi3audit to catch issues with Limited API wheels
-          CIBW_REPAIR_WHEEL_COMMAND: "bash ./tools/cibw_repair_wheel_command.sh {dest_dir} {wheel} {delocate_archs}"
-          CIBW_ENVIRONMENT_PASS_LINUX: "RUNNER_OS"
-          CIBW_PROJECT_REQUIRES_PYTHON: ">=3.8"
       - uses: actions/upload-artifact@v4
         with:
           name: cibw-wheels-${{ matrix.os }}-${{ matrix.arch}}-${{ strategy.job-index }}
diff --git a/.gitignore b/.gitignore
index 67b28ba..3c1a62c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@ src/*.egg-info
 __pycache__
 .eggs
 /dist/
+/wheelhouse/
diff --git a/pyproject.toml b/pyproject.toml
index 9787c3b..dec3b6b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,51 @@
 [build-system]
-requires = ["setuptools", "wheel"]
+requires = ["setuptools", "wheel", "pa_ringbuffer", "cffi>=1.4.0"]
 build-backend = "setuptools.build_meta"
+
+[project]
+requires-python = ">=3.10"
+name = "rtmixer"
+dynamic = ["version"]
+readme = {content-type = "text/x-rst", file = "README.rst"}
+authors = [
+  {email = "Matthias.Geier@gmail.com", name = "Matthias Geier"},
+]
+description = 'Reliable low-latency audio playback and recording'
+license = 'MIT'
+keywords = [
+    "sound", "audio", "PortAudio", "realtime", "low-latency"
+]
+dependencies = [
+    'CFFI>=1',  # for _cffi_backend
+    'pa_ringbuffer',  # for init()
+    'sounddevice>0.3.9',
+]
+classifiers =[
+    'Operating System :: OS Independent',
+    'Programming Language :: Python',
+    'Programming Language :: Python :: 3',
+    'Topic :: Multimedia :: Sound/Audio',
+]
+
+[project.urls]
+"Bug Tracker" = "https://github.com/spatialaudio/python-rtmixer/issues"
+Documentation = "https://python-rtmixer.readthedocs.io"
+Homepage = "https://python-rtmixer.readthedocs.io"
+"Source Code" = "https://github.com/spatialaudio/python-rtmixer"
+
+[tool.cibuildwheel]
+enable = ["pypy", "pypy-eol"]
+manylinux-aarch64-image = "manylinux2014"
+manylinux-pypy_x86_64-image = "manylinux2014"
+manylinux-pypy_aarch64-image = "manylinux2014"
+manylinux-x86_64-image = "manylinux2014"
+test-command = "python -c \"import rtmixer; print(rtmixer.__version__)\""
+# No portaudio on these platforms:
+test-skip = "*_i686 *-musllinux_* *_aarch64"
+# To enable testing we'd have to bump up to the Almalinux 8-based image:
+# manylinux-aarch64-image = "manylinux_2_28"
+repair-wheel-command = "bash ./tools/cibw_repair_wheel_command.sh {dest_dir} {wheel} {delocate_archs}"
+
+[tool.cibuildwheel.linux]
+before-test = "bash {project}/tools/cibw_before_test_linux.sh"
+environment = { RUNNER_OS="Linux" }  # facilitate local testing
diff --git a/setup.py b/setup.py
index ec07d0b..990cb5a 100644
--- a/setup.py
+++ b/setup.py
@@ -19,40 +19,15 @@ def get_tag(self):
         if python.startswith("cp"):
             # on CPython, our wheels are abi3 and compatible back to 3.2,
             # but let's set it to our min version anyway
-            return "cp38", "abi3", plat
+            return "cp310", "abi3", plat
 
         return python, abi, plat
 
 
 setup(
-    name='rtmixer',
     version=__version__,
     package_dir={'': 'src'},
     py_modules=['rtmixer'],
     cffi_modules=['rtmixer_build.py:ffibuilder'],  # sets Py_LIMITED_API for us
-    python_requires='>=3.6',
-    setup_requires=[
-        'CFFI>=1.4.0',
-        'pa_ringbuffer',  # for cdef()
-    ],
-    install_requires=[
-        'CFFI>=1',  # for _cffi_backend
-        'pa_ringbuffer',  # for init()
-        'sounddevice>0.3.9',
-    ],
-    author='Matthias Geier',
-    author_email='Matthias.Geier@gmail.com',
-    description='Reliable low-latency audio playback and recording',
-    long_description=open('README.rst').read(),
-    license='MIT',
-    keywords='sound audio PortAudio realtime low-latency'.split(),
-    url='https://python-rtmixer.readthedocs.io/',
-    platforms='any',
-    classifiers=[
-        'Operating System :: OS Independent',
-        'Programming Language :: Python',
-        'Programming Language :: Python :: 3',
-        'Topic :: Multimedia :: Sound/Audio',
-    ],
     cmdclass={"bdist_wheel": bdist_wheel_abi3},
 )