From 6737469b3099d90d8a88ba16fb872d70bf9c8270 Mon Sep 17 00:00:00 2001
From: Mari Imaizumi <mariimaizumi5@gmail.com>
Date: Wed, 5 Nov 2025 14:29:41 +0900
Subject: [PATCH] Pin power_assert to v2 for Ruby 2.7 (v3 requires 3.1+)

---
 Gemfile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Gemfile b/Gemfile
index b694335031..72a0305a92 100644
--- a/Gemfile
+++ b/Gemfile
@@ -14,6 +14,7 @@ gem 'rdoc'
 gem 'rake'
 gem 'test-unit'
 gem 'test-unit-ruby-core'
+gem "power_assert", "~> 2.0" if RUBY_VERSION < '3.0' # https://github.com/ruby/power_assert/pull/61
 
 # Only used in ci to run readline-ext test using Reline as Readline
 gem 'readline'