From 6215937786bc44acc0bbca84a2857d0cafd2899b Mon Sep 17 00:00:00 2001
From: Taichi Ishitani <ishitani@pezy.co.jp>
Date: Thu, 23 Apr 2026 17:03:13 +0900
Subject: [PATCH] add Ruby 4.0

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ecf2635..b3ba81d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
 
     strategy:
       matrix:
-        ruby: ['3.4', '3.3', '3.2', '3.1']
+        ruby: ['4.0', '3.4', '3.3', '3.2', '3.1']
     env:
       BUNDLE_WITH: 'development_common development_test'
       BUNDLE_WITHOUT: 'development_lint development_local'