Index: pyproject.toml
--- pyproject.toml.orig
+++ pyproject.toml
@@ -2,7 +2,7 @@
 requires = [
     "setuptools>=67.8",
     "wheel",
-    "cython~=3.0.2",
+    "cython",
     "numpy>=2"
 ]
 build-backend = "setuptools.build_meta"
