From 55dcb36d85a051a01b02096654cdeca74d2388da Mon Sep 17 00:00:00 2001
From: Sotetsu KOYAMADA <koyamada-s@sys.i.kyoto-u.ac.jp>
Date: Wed, 30 Oct 2024 16:30:55 +0900
Subject: [PATCH] [CI] Cancel old workflows (#1266)

---
 .github/workflows/ci.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a02bfe79e..0b3b2b346 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,6 +6,10 @@ on:
       - main
   pull_request:
 
+concurrency:
+  group: ci-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: true
+
 jobs:
   test:
     runs-on: "${{ matrix.os }}"