add last last pin

HGWright · HGWright · commit 77aedee0cbc1 · 2025-06-06T15:56:50.000+01:00
diff --git a/pyproject.toml b/pyproject.toml
@@ -1,7 +1,7 @@
 [build-system]
 # Defined by PEP 518
 requires = [
-  "Cython",
+  "Cython<3.1.0",
   "numpy>=2",
   "setuptools>=77.0.3",
   "setuptools_scm[toml]>=8",
