diff --git a/pyproject.toml b/pyproject.toml
index d2bba8c..6e1babb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,3 @@
 [build-system]
-requires = ['pymsbuild>=1.0', 'Cython>=3.0']
+requires = ['pymsbuild>=1.0', 'Cython>=3.2.4']
 build-backend = "pymsbuild"