From d439147c138797fc2ca3d76f61f732febe50948c Mon Sep 17 00:00:00 2001
From: Mike Taves <mwtoews@gmail.com>
Date: Sat, 8 Aug 2026 14:19:58 +1200
Subject: [PATCH] chore: improve license metadata (PEP 639)

---
 pyproject.toml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pyproject.toml b/pyproject.toml
index b1e9bb24..ce6f52b5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,11 +13,11 @@ maintainers = [
     { name = "Joseph D. Hughes", email = "jdhughes@usgs.gov" },
 ]
 keywords = ["MODFLOW", "groundwater", "hydrogeology"]
-license = { text = "CC0" }
+license = "CC0-1.0"
+license-files = ["LICENSE.md"]
 classifiers = [
     "Development Status :: 5 - Production/Stable",
     "Intended Audience :: Science/Research",
-    "License :: CC0 1.0 Universal (CC0 1.0) Public Domain Dedication",
     "Programming Language :: Python :: 3 :: Only",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",