diff --git a/.gitea/workflows/deploy.yml b/.gitea/workflows/deploy.yml
index b9bc7e3..9f6e811 100644
--- a/.gitea/workflows/deploy.yml
+++ b/.gitea/workflows/deploy.yml
@@ -10,14 +10,18 @@ jobs:
     steps:
       - name: 安装 Docker CLI
         run: |
-          # 大概率 gitea act_runner 已预装 docker，先探测（避免 apt 走国外源 3h 超时）
+          # 大概率 gitea act_runner 已预装 docker，先探测（避免 apt 走国外源超时）
           if command -v docker >/dev/null 2>&1; then
             echo "Docker 已预装：$(docker --version)"
             exit 0
           fi
-          echo "Docker 未预装，开始 apt 安装（每步限时 3 分钟，超时快速失败）"
-          timeout 60 apt-get update -qq || { echo "apt-get update 超时/失败"; exit 1; }
-          timeout 180 apt-get install -y -qq docker.io || { echo "docker.io 安装超时/失败"; exit 1; }
+          echo "Docker 未预装，换 Ubuntu 源到阿里云再 apt 安装"
+          # 兼容 legacy sources.list、deb822 .sources、以及 sources.list.d/*.list
+          sed -i 's|archive.ubuntu.com|mirrors.aliyun.com|g;s|security.ubuntu.com|mirrors.aliyun.com|g' /etc/apt/sources.list 2>/dev/null || true
+          sed -i 's|archive.ubuntu.com|mirrors.aliyun.com|g;s|security.ubuntu.com|mirrors.aliyun.com|g' /etc/apt/sources.list.d/*.sources 2>/dev/null || true
+          sed -i 's|archive.ubuntu.com|mirrors.aliyun.com|g;s|security.ubuntu.com|mirrors.aliyun.com|g' /etc/apt/sources.list.d/*.list 2>/dev/null || true
+          timeout 90 apt-get update -qq || { echo "apt-get update 超时/失败"; exit 1; }
+          timeout 240 apt-get install -y -qq docker.io || { echo "docker.io 安装超时/失败"; exit 1; }
           docker --version
 
       - name: 拉取代码