From 62255c0b8b98d11fb41d46ade59bded5fbca7326 Mon Sep 17 00:00:00 2001
From: Yuji Yaginuma <yuuji.yaginuma@gmail.com>
Date: Mon, 5 Jan 2026 18:42:31 +0900
Subject: [PATCH] CI against Ruby 4.0

---
 .github/workflows/development.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.github/workflows/development.yml b/.github/workflows/development.yml
index 623baf50..cd2b0924 100644
--- a/.github/workflows/development.yml
+++ b/.github/workflows/development.yml
@@ -21,6 +21,7 @@ jobs:
           - 3.2
           - 3.3
           - 3.4
+          - "4.0"
 
         experimental: [false]
         env: [""]