diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index a1cefc0b..280121f8 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -30,12 +30,12 @@ jobs:
       - name: Install setuptools
         run: |
           python -m pip install --upgrade pip
-          pip install setuptools wheel twine
+          pip install build setuptools twine
 
       - name: Build and publish
         env:
           TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
           TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
         run: |
-          python setup.py sdist bdist_wheel
-          twine upload dist/*
\ No newline at end of file
+          python -m build
+          twine upload dist/*
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 00000000..116e7431
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,67 @@
+[build-system]
+requires = ["setuptools"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "traveltimepy"
+dynamic = ["version"]
+description = "Python Interface to Travel Time."
+readme = { file = "README.md", content-type = "text/markdown" }
+keywords = ["traveltimepy", "api", "maps"]
+license = { text = "MIT" }
+authors = [{ name = "TravelTime" }]
+requires-python = ">=3.8"
+dependencies = [
+	"pydantic",
+	"typing-extensions",
+	"geojson-pydantic>=1.0.1",
+	"shapely",
+	"dacite",
+	"certifi>=2021.5.30",
+	"aiohttp",
+	"aiolimiter",
+	"aiohttp-retry",
+	"protobuf==4.21.12",
+	"types-protobuf",
+]
+classifiers = [
+	"Programming Language :: Python :: 3",
+	"Programming Language :: Python :: 3.8",
+	"Programming Language :: Python :: 3.9",
+	"Programming Language :: Python :: 3.10",
+	"Programming Language :: Python :: 3.11",
+	"Programming Language :: Python :: 3.12",
+	"License :: OSI Approved :: MIT License",
+]
+
+[project.optional-dependencies]
+test = [
+	"pytest",
+	"pytest-asyncio",
+	"flake8",
+	"flake8-pyproject",
+	"mypy",
+	"black",
+]
+
+[tool.setuptools]
+zip-safe = false
+include-package-data = true
+packages = { find = {} }
+
+[tool.setuptools.dynamic]
+version = { attr = "traveltimepy.version.__version__" }
+
+[tool.flake8]
+per-file-ignores = ["**/__init__.py:F401"]
+max-line-length = 88
+extend-ignore = ["E203"]                             # See https://github.com/PyCQA/pycodestyle/issues/373
+exclude = ["build/", "venv/", "traveltimepy/proto/"]
+
+[tool.mypy]
+ignore_missing_imports = true
+exclude = "^(traveltimepy/proto/.*|build/.*|venv/.*)$"
+
+[[tool.mypy.overrides]]
+module = "traveltimepy.proto.*"
+follow_imports = "skip"
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index dd9ba6f9..00000000
--- a/setup.cfg
+++ /dev/null
@@ -1,55 +0,0 @@
-[metadata]
-name = traveltimepy
-version = attr: traveltimepy.version.__version__
-description = "Python Interface to Travel Time."
-long_description = file: README.md
-long_description_content_type = text/markdown
-keywords = traveltimepy, api, maps
-license = MIT
-author = TravelTime
-
-
-[options]
-zip_safe = False
-include_package_data = True
-python_requires = >=3.8
-packages = find_namespace:
-install_requires =
-	pydantic
-    typing-extensions
-	geojson-pydantic >= 1.0.1
-	shapely
-	dacite
-	certifi >= 2021.5.30
-	aiohttp
-	aiolimiter
-	aiohttp-retry
-	protobuf == 4.21.12
-	types-protobuf
-
-[options.extras_require]
-test =
-    pytest
-    pytest-asyncio
-    flake8
-    mypy
-    black
-
-[flake8]
-per-file-ignores = __init__.py:F401
-max-line-length = 88
-extend-ignore =
-    # See https://github.com/PyCQA/pycodestyle/issues/373
-    E203,
-exclude =
-    build/
-    venv/
-    traveltimepy/proto/
-
-[mypy]
-ignore_missing_imports = True
-exclude = ^(traveltimepy/proto/.*|build/.*|venv/.*)$
-
-[mypy-traveltimepy/proto.*]
-follow_imports = skip
-
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 4da1fcae..00000000
--- a/setup.py
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/usr/bin/env python
-"""See `setup.cfg` for configuration. This just allows editable installs."""
-
-import setuptools
-
-if __name__ == "__main__":
-    setuptools.setup()
diff --git a/traveltimepy/version.py b/traveltimepy/version.py
index ae7c2baf..4b76f0fe 100644
--- a/traveltimepy/version.py
+++ b/traveltimepy/version.py
@@ -1 +1 @@
-__version__ = "3.9.9"
+__version__ = "3.9.10"