--- pyproject.toml.orig	2024-04-10 14:59:49 UTC
+++ pyproject.toml
@@ -1,10 +1,9 @@ requires = [
 [build-system]
 requires = [
-    "setuptools>=67.8",
+    "setuptools>=61",
     "wheel",
-    "cython~=3.0.2",
-    "numpy==2.0.0rc1; python_version >= '3.9'",
-    "oldest-supported-numpy; python_version < '3.9'"
+    "cython",
+    "numpy",
 ]
 
 build-backend = "setuptools.build_meta"