diff --git a/pyproject.toml b/pyproject.toml
index 63a68fb..db57f81 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,6 +2,44 @@
 requires = ["setuptools", "wheel"]
 build-backend = "setuptools.build_meta"
 
+[project]
+name = "nionswift-eels-analysis"
+version = "0.6.13"
+authors = [
+    { name = "Nion Software", email = "swift@nion.com" }
+]
+description = "Nion UI framework."
+readme = "README.rst"
+requires-python = ">=3.12"
+license = "GPL-3.0-only"
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "Intended Audience :: Developers",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14"
+]
+urls = { "Homepage" = "https://github.com/nion-software/nionui" }
+dependencies = [
+    "nionswift >=16.16,<17.0",
+    "nionui >=10.2,<11.0",
+    "numpy >=2.0,<3.0"
+]
+
+[tool.setuptools.packages.find]
+include = [
+    "nion",
+    "nion.eels_analysis",
+    "nion.eels_analysis.test",
+    "nionswift_plugin",
+    "nionswift_plugin.nion_eels_analysis",
+    "nionswift_plugin.nion_eels_analysis.test"
+]
+
+[tool.setuptools.package-data]
+"nion.eels_analysis" = ["resources/*"]
+"nionswift_plugin.nion_eels_analysis" = ["resources/color_maps/*"]
+
 [tool.pytest.ini_options]
 testpaths = [
     "nionswift_plugin/nion_eels_analysis/test",
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 5ca16f9..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,41 +0,0 @@
-[metadata]
-name = nionswift-eels-analysis
-version = 0.6.13
-author = Nion Software
-author_email = swift@nion.com
-description = Library and UI for doing EELS analysis with Nion Swift.
-long_description = file: README.rst, CHANGES.rst
-url = https://github.com/nion-software/eels-analysis
-license = GPL-3.0-only
-classifiers =
-    Development Status :: 4 - Beta
-    License :: OSI Approved :: GNU General Public License v3 (GPLv3)
-    Programming Language :: Python :: 3.11
-    Programming Language :: Python :: 3.12
-    Programming Language :: Python :: 3.13
-
-[options]
-packages = find_namespace:
-python_requires = >=3.11
-install_requires =
-    nionswift >=16.16,<17.0
-    nionui >=10.2,<11.0
-    numpy >=2.0,<3.0
-tests_require =
-    nionswift
-    nionswift-io
-
-[options.package_data]
-nion.eels_analysis =
-    resources/*
-nionswift_plugin.nion_eels_analysis =
-    resources/color_maps/*
-
-[options.packages.find]
-include =
-    nion
-    nion.eels_analysis
-    nion.eels_analysis.test
-    nionswift_plugin
-    nionswift_plugin.nion_eels_analysis
-    nionswift_plugin.nion_eels_analysis.test
diff --git a/setup.py b/setup.py
deleted file mode 100755
index 7f1a176..0000000
--- a/setup.py
+++ /dev/null
@@ -1,4 +0,0 @@
-from setuptools import setup
-
-if __name__ == "__main__":
-    setup()