From 820cf5a857f045b05d85c345e9240ff206ecad1e Mon Sep 17 00:00:00 2001
From: sabonerune <102559104+sabonerune@users.noreply.github.com>
Date: Thu, 18 Dec 2025 17:28:55 +0900
Subject: [PATCH] FIX: Fix build failure issue with Python3.8

---
 pyproject.toml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pyproject.toml b/pyproject.toml
index b8eaa23..380d95b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,5 +4,6 @@ requires = [
     "numpy>=2; python_version>='3.9'",
     "oldest-supported-numpy; python_version<'3.9'",
     "cython",
+    "cython<3.1.0; python_version<'3.9'",
 ]
 build-backend = "setuptools.build_meta"