diff --git a/.gitea/workflows/deploy.yml b/.gitea/workflows/deploy.yml
index 3d3a061..0702aae 100644
--- a/.gitea/workflows/deploy.yml
+++ b/.gitea/workflows/deploy.yml
@@ -3,8 +3,8 @@ on:
   workflow_dispatch:
 jobs:
   deploy:
-    # This unique host label prevents production from landing on another global runner.
-    runs-on: coffeechat-production
+    # Unique machine label: production must run on this server, never another global runner.
+    runs-on: minecraft-and-affine-server
     concurrency: coffeechat-production
     steps:
       - uses: actions/checkout@v4
diff --git a/docs/deployment.md b/docs/deployment.md
index 996dbfb..1419be4 100644
--- a/docs/deployment.md
+++ b/docs/deployment.md
@@ -2,7 +2,7 @@
 
 ## 1. 主机准备
 
-`minecraft-and-affine-server` Gitea Runner 需要可执行 Docker Compose，并注册唯一的 `coffeechat-production:host` 标签；部署工作流只匹配该标签，不会被其他全局 Runner 接走。Runner 服务账号必须能读取 `/opt/coffeechat/.env`，建议将该文件权限限制为该账号可读：
+`minecraft-and-affine-server` Gitea Runner 需要可执行 Docker Compose，并注册唯一的同名机器标签 `minecraft-and-affine-server:host`；部署工作流只匹配该标签，不会被其他全局 Runner 接走。其他服务器应使用各自唯一的同名标签。Runner 服务账号必须能读取 `/opt/coffeechat/.env`，建议将该文件权限限制为该账号可读：
 
 ```dotenv
 POSTGRES_PASSWORD=随机数据库密码