diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..b88424a
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,26 @@
+[build-system]
+requires = ["setuptools >= 58.0"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "padic"
+version = "0.0.2"
+authors = [
+  { name="Beat Jäckle", email="beat@git.jdmweb2.ch" },
+]
+description = "class for p-adic number fields"
+readme = "README.md"
+license = { file="LICENSE" }
+requires-python = ">=3.7"
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "License :: OSI Approved :: GPL3",
+    "Operating System :: OS Independent",
+]
+
+[project.urls]
+"Homepage" = "https://git.jdmweb2.ch/beat/p-adic-numbers"
+"Bug Tracker" = "https://git.jdmweb2.ch/beat/p-adic-numbers/issues"
+
+[tool.setuptools]
+py-modules = ['hensel', 'modp', 'poly', 'padic']