diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 25d4c6a..ee3645e 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -21,7 +21,9 @@ on:
 
 concurrency:
   group: deploy-${{ github.ref }}
-  cancel-in-progress: false
+  # 連續 push 時取消舊跑（節省 GH Actions minutes 配額；M5 之前 LI 開發頻率高）
+  # 2026-05-16 leo 帳號 Actions 用爆配額被 disable 一次，改用此設定降風險
+  cancel-in-progress: true
 
 jobs:
   # ── Job 1:掃描所有 wrangler.toml 目錄,輸出 deploy matrix ──────────────