From 2c6f92520db78ed4dcec9056bd02c12304dead30 Mon Sep 17 00:00:00 2001
From: kojix2 <2xijok@gmail.com>
Date: Sun, 18 Jan 2026 20:49:28 +0900
Subject: [PATCH] ci: Ruby 4.0

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

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c9a5cbc..eb3b7ce 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,6 +20,7 @@ jobs:
           - macos-latest
           - windows-latest
         ruby:
+          - 4.0
           - 3.4
           - 3.3
           - 3.2