--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [build-system]
 requires = [
     "scikit-build-core>=0.11",
-    "Cython >=3.1.6, <3.3.0"
+    "Cython"
 ]
 build-backend = "scikit_build_core.build"