--- pyproject.toml.orig	2025-09-29 16:07:05
+++ pyproject.toml	2025-09-29 16:07:12
@@ -127,7 +127,7 @@
 [build-system]
 requires = ["setuptools",
             "setuptools_scm>=6.2",
-            "cython>=3.0.0,<3.1.0",
+            "cython>=3.0.0",
             "numpy>=2.0.0",
             "extension-helpers==1.*"]
 build-backend = "setuptools.build_meta"
