--- pyproject.toml.orig	2026-07-22 22:03:21 UTC
+++ pyproject.toml
@@ -1,7 +1,7 @@ requires = [
 [build-system]
 requires = [
     # setuptools 77 for core-metadata version 2.4
-    "setuptools>=77",
+    "setuptools>=61.0",
     "wheel",
     # leave Cython as an optional, runtime‑selectable extra
     # setuptools will still import it from setup.py when requested
@@ -16,8 +16,8 @@ readme = "README.md"
 name = "pyomo"
 description = "The Pyomo optimization modeling framework"
 readme = "README.md"
-license = "BSD-3-Clause"
-license-files = [ "LICENSE.md" ]
+license = {text = "BSD-3-Clause"}
+# license-files removed
 authors = [{name = "Pyomo Development Team", email = "pyomo-developers@googlegroups.com"}]
 requires-python = ">=3.10"
 keywords=['optimization']