diff --git a/MANIFEST.in b/MANIFEST.in
index 69366c5..46f53f8 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,7 +1,6 @@
 include README.rst
 include LICENSE.txt
 include CHANGES.rst
-include setup.cfg
 include pyproject.toml
 recursive-include doc *
 
diff --git a/pyproject.toml b/pyproject.toml
index db533e9..e59de3a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -109,6 +109,9 @@ acstools = [
     "data/truth/*.fits",
 ]
 
+[tool.setuptools_scm]
+version_file = "acstools/version.py"
+
 [tool.pytest.ini_options]
 minversion = "5"
 testpaths = [
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 25dd769..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,102 +0,0 @@
-[metadata]
-name = acstools
-description = Python Tools for HST ACS
-long_description = Python Tools for HST ACS (Advanced Camera for Surveys) Data
-long_description_content_type = text/plain
-keywords = astronomy, astrophysics, calibration
-author = Matt Davis, Warren Hack, Norman Grogin, Pey Lian Lim, Sara Ogaz, Leonardo Ubeda, Mihai Cara, David Borncamp, Nathan Miles, Tyler Desjardins, Jenna Ryon, David Stark, Gagandeep Anand, Yotam Cohen
-author_email = help@stsci.edu
-license = BSD
-license_files = LICENSE.md
-url = https://github.com/spacetelescope/acstools
-edit_on_github = False
-github_project = spacetelescope/acstools
-classifier =
-    Intended Audience :: Science/Research
-    License :: OSI Approved :: BSD License
-    Operating System :: OS Independent
-    Programming Language :: Python :: 3
-    Programming Language :: Python :: Implementation :: CPython
-    Topic :: Scientific/Engineering :: Astronomy
-    Topic :: Scientific/Engineering :: Physics
-    Topic :: Software Development :: Libraries :: Python Modules
-project_urls =
-    Bug Reports = https://github.com/spacetelescope/acstools/issues/
-    Source = https://github.com/spacetelescope/acstools/
-    Help = https://hsthelp.stsci.edu
-
-[options]
-packages = find:
-zip_safe = False
-setup_requires=
-    setuptools_scm
-install_requires =
-    numpy
-    astropy>=3.1
-    requests
-    PyYAML
-python_requires = >=3.8
-
-[options.extras_require]
-all =
-    matplotlib
-    scipy
-    scikit-image
-    stsci.tools
-    stsci.imagestats
-    photutils
-    dask
-test =
-    pytest
-    pytest-astropy-header
-    pytest-remotedata
-    ci-watson
-docs =
-    sphinx
-    sphinx-automodapi
-    sphinx-rtd-theme
-
-[options.package_data]
-acstools = data/*
-acstools.tests =
-    data/input/*.fits
-    data/truth/*.fits
-
-[options.entry_points]
-console_scripts =
-  acs_destripe = acstools.acs_destripe:main
-  acs_destripe_plus = acstools.acs_destripe_plus:main
-
-[tool:pytest]
-minversion = 5
-testpaths = "acstools" "doc"
-norecursedirs = build doc/build
-astropy_header = true
-xfail_strict = true
-filterwarnings =
-  error
-  ignore:numpy\.ndarray size changed:RuntimeWarning
-  ignore:unclosed file:ResourceWarning
-  ignore:distutils Version classes are deprecated:DeprecationWarning
-  ignore:Deprecation Warning.*timeout.*parameter no longer needed:UserWarning
-  # https://github.com/spacetelescope/crds/issues/922
-  ignore:Deprecated call to.*pkg_resources\.declare_namespace.*:DeprecationWarning
-  ignore:pkg_resources is deprecated as an API:DeprecationWarning
-  # Python 3.12 warning from dateutil imported by matplotlib
-  ignore:.*utcfromtimestamp:DeprecationWarning
-  # Ignore numpy 2.0 warning, see https://github.com/astropy/astropy/pull/15495
-  # and https://github.com/scipy/scipy/pull/19275
-  ignore:.*numpy\.core.*:DeprecationWarning
-  # Do not let broken scikit-image block the rest of test suite
-  ignore:skimage not installed
-
-[flake8]
-# Ignoring these for now:
-# E221: multiple spaces before operator
-# E226: missing whitespace around arithmetic operator
-# E262: inline comment should start with '# '
-# E265: block comment should start with '#'
-# E501: line too long
-# E704: multiple statements on one line (def)
-# W504: line break after binary operator
-ignore = E221,E226,E262,E265,E501,E704,W504
diff --git a/setup.py b/setup.py
deleted file mode 100755
index 9f6f1d3..0000000
--- a/setup.py
+++ /dev/null
@@ -1,39 +0,0 @@
-#!/usr/bin/env python
-import sys
-from setuptools import setup
-
-TEST_HELP = """
-Note: running tests is no longer done using 'python setup.py test'. Instead
-you will need to run:
-
-    pip install -e .
-    pytest
-
-For more information, see:
-
-  https://docs.astropy.org/en/latest/development/testguide.html#running-tests
-"""
-
-if 'test' in sys.argv:
-    print(TEST_HELP)
-    sys.exit(1)
-
-DOCS_HELP = """
-Note: building the documentation is no longer done using
-'python setup.py build_docs'. Instead you will need to run:
-
-    cd docs
-    make html
-
-For more information, see:
-
-  https://docs.astropy.org/en/latest/install.html#builddocs
-"""
-
-if 'build_docs' in sys.argv or 'build_sphinx' in sys.argv:
-    print(DOCS_HELP)
-    sys.exit(1)
-
-setup(
-    use_scm_version={'write_to': 'acstools/version.py'},
-)