diff --git a/setup.cfg b/.flake8
similarity index 84%
rename from setup.cfg
rename to .flake8
index 8edefbf..48215ff 100644
--- a/setup.cfg
+++ b/.flake8
@@ -1,6 +1,3 @@
-[bdist_wheel]
-universal = 1
-
 [flake8]
 max-line-length = 88
 exclude = docs,
diff --git a/.github/workflows/check-build.yml b/.github/workflows/check-build.yml
index d844d0e..c7096b9 100644
--- a/.github/workflows/check-build.yml
+++ b/.github/workflows/check-build.yml
@@ -13,9 +13,9 @@ jobs:
         python-version: '3.10'
     - name: Install dependencies
       run: |
-        python -m pip install --upgrade pip
-        python -m pip install -U setuptools wheel twine
-    - name: Build and check
-      run: |
-        python setup.py sdist bdist_wheel
-        twine check dist/*
+          python -m pip install --upgrade pip
+          python -m pip install -U build twine
+    - name: Build and check source tarball
+      run: python -m build
+    - name: Twine check
+      run: twine check dist/*
diff --git a/.github/workflows/publish-to-pypi.yml b/.github/workflows/publish-to-pypi.yml
index dd0bde4..f28a953 100644
--- a/.github/workflows/publish-to-pypi.yml
+++ b/.github/workflows/publish-to-pypi.yml
@@ -20,9 +20,9 @@ jobs:
     - name: Install dependencies
       run: |
           python -m pip install --upgrade pip
-          python -m pip install -U setuptools setuptools_scm wheel twine
+          python -m pip install -U build twine
     - name: Build and check source tarball
-      run: python setup.py sdist bdist_wheel
+      run: python -m build
     - name: Twine check
       run: twine check dist/*
     - name: Publish distribution to PyPI
diff --git a/.github/workflows/run-pytest-tests.yml b/.github/workflows/run-pytest-tests.yml
index f3ff65f..a0818f9 100644
--- a/.github/workflows/run-pytest-tests.yml
+++ b/.github/workflows/run-pytest-tests.yml
@@ -17,19 +17,15 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install -r requirements_dev.txt
     - name: Setup yt_xarray
       run: |
-        python -m pip install -e .
+        python -m pip install --upgrade pip
+        python -m pip install -e .[full,test]
     - name: Run Tests
       run: pytest --cov=./ --cov-report=xml:coverage/coverage.xml
 
     # https://github.com/marketplace/actions/codecov#example-workflowyml-with-codecov-action
     - name: Upload coverage to Codecov
-      if: matrix.os == 'ubuntu-latest'
       uses: codecov/codecov-action@v3
       with:
         directory: ./coverage/
diff --git a/.github/workflows/weekly-test.yml b/.github/workflows/weekly-test.yml
index 5e2783a..a3b37a7 100644
--- a/.github/workflows/weekly-test.yml
+++ b/.github/workflows/weekly-test.yml
@@ -20,11 +20,9 @@ jobs:
           uses: actions/setup-python@v4
           with:
             python-version: ${{ matrix.python-version }}
-        - name: Install dependencies
-          run: |
-                python -m pip install --upgrade pip
-                python -m pip install -r requirements_dev.txt
         - name: Setup yt_xarray
-          run: python -m pip install -e .
+          run: |
+            python -m pip install --upgrade pip
+            python -m pip install -e .[full,test]
         - name: Run Tests
           run: pytest -v .
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 5401e83..0b49008 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -14,6 +14,7 @@ build:
 # Optionally declare the Python requirements required to build your docs
 python:
    install:
-   - requirements: requirements.txt
-   - requirements: requirements_dev.txt
-   - requirements: requirements_docs.txt
+    - method: pip
+      path: .
+      extra_requirements:
+        - docs
diff --git a/MANIFEST.in b/MANIFEST.in
index 4642861..75e7757 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -6,6 +6,7 @@ include *.yaml
 include Makefile
 include tox.ini
 include .coveragerc
+include .flake8
 recursive-include tests *
 recursive-exclude * __pycache__
 recursive-exclude * *.py[co]
diff --git a/pyproject.toml b/pyproject.toml
index 4d4f9d7..9bff91b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,40 @@
+[build-system]
+requires = ["setuptools>=61.0"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "yt_xarray"
+version = "0.1.4"
+authors = [
+  { name="Chris Havlin", email="chris.havlin@gmail.com" },
+]
+description="interface between yt and xarray"
+readme = "README.md"
+requires-python = ">=3.9"
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: MIT License",
+    "Natural Language :: English",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+]
+dependencies=['yt>=4.2.0', 'h5py>=3.4.0', 'pooch>=1.5.1', 'xarray']
+
+[project.urls]
+"Homepage" = "https://github.com/data-exp-lab/yt_xarray"
+"Bug Tracker" = "https://github.com/data-exp-lab/yt_xarray/issues"
+
+[project.optional-dependencies]
+full = ["netCDF4", "scipy", "dask[complete]"]
+test = ["pytest", "pytest-cov"]
+docs = ["Sphinx==1.8.5", "jinja2<3.1.0", "nbsphinx"]
+
 [tool.black]
 line-length = 88
-target-version = ['py37']
+target-version = ['py310']
 
 [tool.isort]
 profile = "black"
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 1585694..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-
-yt>=4.2.0
-h5py>=3.4.0
-pooch>=1.5.1
-xarray
diff --git a/requirements_dev.txt b/requirements_dev.txt
deleted file mode 100644
index 49bf8cb..0000000
--- a/requirements_dev.txt
+++ /dev/null
@@ -1,9 +0,0 @@
-pip
-twine
-pre-commit
-netCDF4
-h5py
-scipy
-pytest
-pytest-cov
-dask[complete]
diff --git a/requirements_docs.txt b/requirements_docs.txt
index 5371437..e69de29 100644
--- a/requirements_docs.txt
+++ b/requirements_docs.txt
@@ -1,3 +0,0 @@
-Sphinx==1.8.5
-jinja2<3.1.0
-nbsphinx
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 3998919..0000000
--- a/setup.py
+++ /dev/null
@@ -1,46 +0,0 @@
-#!/usr/bin/env python
-
-"""The setup script."""
-
-from setuptools import find_packages, setup
-
-with open("requirements.txt") as reqs_file:
-    requirements = reqs_file.read().strip().split("\n")
-
-with open("README.md", "r") as readme_file:
-    readme_md = readme_file.read()
-
-
-test_requirements = [
-    "pytest>=3",
-]
-
-setup(
-    author="Chris Havlin",
-    author_email="chris.havlin@gmail.com",
-    python_requires=">=3.9",
-    classifiers=[
-        "Development Status :: 4 - Beta",
-        "Intended Audience :: Developers",
-        "License :: OSI Approved :: MIT License",
-        "Natural Language :: English",
-        "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.9",
-        "Programming Language :: Python :: 3.10",
-        "Programming Language :: Python :: 3.11",
-    ],
-    description="interface between yt and xarray",
-    install_requires=requirements,
-    license="MIT license",
-    long_description=readme_md,
-    long_description_content_type="text/markdown",
-    include_package_data=True,
-    keywords="yt_xarray",
-    name="yt_xarray",
-    packages=find_packages(include=["yt_xarray", "yt_xarray.*"]),
-    test_suite="tests",
-    tests_require=test_requirements,
-    url="https://github.com/data-exp-lab/yt_xarray",
-    version="0.1.4",
-    zip_safe=False,
-)