diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 00000000..11a0da8f
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,79 @@
+[build-system]
+build-backend = "setuptools.build_meta"
+requires = [ "setuptools>=61.2" ]
+
+[project]
+name = "speechrecognition"
+description = "Library for performing speech recognition, with support for several engines and APIs, online and offline."
+readme.content-type = "text/x-rst"
+readme.file = "README.rst"
+keywords = [
+  "api",
+  "bing",
+  "google",
+  "houndify",
+  "ibm",
+  "recognition",
+  "snowboy",
+  "speech",
+  "sphinx",
+  "voice",
+  "wit",
+]
+license = { text = "BSD" }
+authors = [ { name = "Anthony Zhang (Uberi)", email = "azhang9@gmail.com" } ]
+requires-python = ">=3.9"
+classifiers = [
+  "Development Status :: 5 - Production/Stable",
+  "Intended Audience :: Developers",
+  "License :: OSI Approved :: BSD License",
+  "Natural Language :: English",
+  "Operating System :: MacOS :: MacOS X",
+  "Operating System :: Microsoft :: Windows",
+  "Operating System :: Other OS",
+  "Operating System :: POSIX :: Linux",
+  "Programming Language :: Python",
+  "Programming Language :: Python :: 3 :: Only",
+  "Programming Language :: Python :: 3.9",
+  "Programming Language :: Python :: 3.10",
+  "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: 3.12",
+  "Programming Language :: Python :: 3.13",
+  "Topic :: Multimedia :: Sound/Audio :: Speech",
+  "Topic :: Software Development :: Libraries :: Python Modules",
+]
+dynamic = [ "version" ]
+dependencies = [
+  "standard-aifc; python_version>='3.13'",
+  "typing-extensions",
+]
+
+optional-dependencies.assemblyai = [ "requests" ]
+optional-dependencies.audio = [ "pyaudio>=0.2.11" ]
+optional-dependencies.dev = [
+  "flake8",
+  "pytest",
+  "pytest-randomly",
+  "respx",
+  "rstcheck",
+]
+optional-dependencies.groq = [
+  "groq",
+  "httpx<0.28",
+]
+optional-dependencies.openai = [
+  "httpx<0.28",
+  "openai",
+]
+optional-dependencies.pocketsphinx = [ "pocketsphinx<5" ]
+optional-dependencies.whisper-local = [
+  "openai-whisper",
+  "soundfile",
+]
+urls.Homepage = "https://github.com/Uberi/speech_recognition#readme"
+
+[tool.setuptools]
+dynamic.version = { attr = "speech_recognition.__init__.__version__" }
+include-package-data = true
+packages.find.exclude = [ "tests.*" ]
+packages.find.namespaces = false
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 8de63858..00000000
--- a/setup.cfg
+++ /dev/null
@@ -1,22 +0,0 @@
-[options.extras_require]
-dev =
-    flake8
-    rstcheck
-    pytest
-    pytest-randomly
-    respx
-audio =
-    PyAudio >= 0.2.11
-pocketsphinx =
-    pocketsphinx < 5
-whisper-local =
-    openai-whisper
-    soundfile
-openai =
-    openai
-    httpx < 0.28
-groq =
-    groq
-    httpx < 0.28
-assemblyai =
-    requests
diff --git a/setup.py b/setup.py
deleted file mode 100644
index efd463ea..00000000
--- a/setup.py
+++ /dev/null
@@ -1,78 +0,0 @@
-#!/usr/bin/env python3
-
-import logging
-import os
-import stat
-
-from setuptools import find_packages, setup
-from setuptools.command.install import install
-
-import speech_recognition
-
-logger = logging.getLogger("SpeechRecognition.setup")
-
-FILES_TO_MARK_EXECUTABLE = ["flac-linux-x86", "flac-linux-x86_64", "flac-mac", "flac-win32.exe"]
-
-
-class InstallWithExtraSteps(install):
-    def run(self):
-        install.run(self)  # do the original install steps
-
-        # mark the FLAC executables as executable by all users (this fixes occasional issues when file permissions get messed up)
-        for output_path in self.get_outputs():
-            if os.path.basename(output_path) in FILES_TO_MARK_EXECUTABLE:
-                logger.info("setting executable permissions on %s", output_path)
-                stat_info = os.stat(output_path)
-                OWNER_CAN_READ_EXECUTE = stat.S_IRUSR | stat.S_IXUSR
-                GROUP_CAN_READ_EXECUTE = stat.S_IRGRP | stat.S_IXGRP
-                OTHERS_CAN_READ_EXECUTE = stat.S_IROTH | stat.S_IXOTH
-                os.chmod(
-                    output_path,
-                    stat_info.st_mode
-                    | OWNER_CAN_READ_EXECUTE
-                    | GROUP_CAN_READ_EXECUTE
-                    | OTHERS_CAN_READ_EXECUTE,
-                )
-
-
-setup(
-    name="SpeechRecognition",
-    version=speech_recognition.__version__,
-    packages=find_packages(exclude=["tests.*", "test"]),
-    include_package_data=True,
-    cmdclass={"install": InstallWithExtraSteps},
-
-    # PyPI metadata
-    author=speech_recognition.__author__,
-    author_email="azhang9@gmail.com",
-    description=speech_recognition.__doc__,
-    long_description=open("README.rst").read(),
-    long_description_content_type="text/x-rst",
-    license=speech_recognition.__license__,
-    keywords="speech recognition voice sphinx google wit bing api houndify ibm snowboy",
-    url="https://github.com/Uberi/speech_recognition#readme",
-    classifiers=[
-        "Development Status :: 5 - Production/Stable",
-        "Intended Audience :: Developers",
-        "Natural Language :: English",
-        "License :: OSI Approved :: BSD License",
-        "Operating System :: Microsoft :: Windows",
-        "Operating System :: POSIX :: Linux",
-        "Operating System :: MacOS :: MacOS X",
-        "Operating System :: Other OS",
-        "Programming Language :: Python",
-        "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.9",
-        "Programming Language :: Python :: 3.10",
-        "Programming Language :: Python :: 3.11",
-        "Programming Language :: Python :: 3.12",
-        "Topic :: Software Development :: Libraries :: Python Modules",
-        "Topic :: Multimedia :: Sound/Audio :: Speech",
-    ],
-    python_requires=">=3.9",
-    install_requires=[
-        "typing-extensions",
-        "standard-aifc; python_version>='3.13'",
-        "audioop-lts; python_version>='3.13'",
-    ],
-)