diff --git a/deploy/zhixi-nest-api.service b/deploy/zhixi-nest-api.service
index 48065ea..8e883ff 100644
--- a/deploy/zhixi-nest-api.service
+++ b/deploy/zhixi-nest-api.service
@@ -5,8 +5,8 @@ Wants=mysql.service redis.service
 
 [Service]
 Type=simple
-User=www-data
-Group=www-data
+User=ubuntu
+Group=ubuntu
 WorkingDirectory=/opt/zhixi/api-server
 ExecStart=/usr/bin/node dist/src/main.js
 Restart=always
diff --git a/deploy/zhixi-nest-worker.service b/deploy/zhixi-nest-worker.service
index e634cae..9d910c4 100644
--- a/deploy/zhixi-nest-worker.service
+++ b/deploy/zhixi-nest-worker.service
@@ -7,8 +7,8 @@ After=zhixi-nest-api.service
 
 [Service]
 Type=simple
-User=www-data
-Group=www-data
+User=ubuntu
+Group=ubuntu
 WorkingDirectory=/opt/zhixi/backend
 ExecStart=/usr/bin/node dist/src/worker.main.js
 Restart=always
diff --git a/src/worker.main.ts b/src/worker.main.ts
index 5e43787..010eb4d 100644
--- a/src/worker.main.ts
+++ b/src/worker.main.ts
@@ -57,7 +57,7 @@ async function bootstrap() {
   const logger = new Logger('WorkerBootstrap');
 
   // eslint-disable-next-line @typescript-eslint/no-var-requires
-  const pkg = require('../package.json');
+  const pkg = (() => { try { return require('../../package.json'); } catch { return { version: '0.0.0' }; } })();
   const instanceId = generateInstanceId();
   process.env.WORKER_INSTANCE_ID = instanceId;
   logger.log(`Worker version ${pkg.version} — instance ${instanceId}`);
diff --git a/src/workers/worker-heartbeat.service.ts b/src/workers/worker-heartbeat.service.ts
index 53f3268..9e281d1 100644
--- a/src/workers/worker-heartbeat.service.ts
+++ b/src/workers/worker-heartbeat.service.ts
@@ -120,7 +120,7 @@ export class WorkerHeartbeatService implements OnModuleInit, OnModuleDestroy {
     const data: WorkerHeartbeatData = {
       instanceId,
       // eslint-disable-next-line @typescript-eslint/no-var-requires
-      appVersion: require('../../package.json').version,
+      appVersion: (() => { try { return require('../../../package.json').version; } catch { return '0.0.0'; } })(),
       startedAt: this.startedAt.toISOString(),
       queues: Object.keys(QUEUE_DEFINITIONS),
       concurrency: Object.values(QUEUE_DEFINITIONS)[0]?.workerOptions.concurrency ?? 1,