From 21dccb92c101ac3b259718184e07bdba50e8e159 Mon Sep 17 00:00:00 2001
From: Shizuo Fujita <fujita@clear-code.com>
Date: Fri, 27 Mar 2026 15:42:02 +0900
Subject: [PATCH] ci: use sha pinning to mitigate

Signed-off-by: Shizuo Fujita <fujita@clear-code.com>
---
 .github/workflows/linux.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 448d94a..742e4fd 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -27,8 +27,8 @@ jobs:
         experimental: [false]
     name: Ruby ${{ matrix.ruby }} unit testing on ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v6
-    - uses: ruby/setup-ruby@v1
+    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+    - uses: ruby/setup-ruby@4dc28cf14d77b0afa6832d9765ac422dbf0dfedd # v1.298.0
       with:
         ruby-version: ${{ matrix.ruby }}
     - name: unit testing