diff --git a/deploy/ecs/task-definition-worker.staging.json b/deploy/ecs/task-definition-worker.staging.json
index 1dae5664..f9ef7d6c 100644
--- a/deploy/ecs/task-definition-worker.staging.json
+++ b/deploy/ecs/task-definition-worker.staging.json
@@ -23,6 +23,7 @@
         {"name": "DB_SSL_MODE", "value": "require"},
         {"name": "DB_SYNC_POOL_SIZE", "value": "2"},
         {"name": "DB_SYNC_MAX_OVERFLOW", "value": "2"},
+        {"name": "WORKER_CONCURRENCY", "value": "10"},
         {"name": "TMP_PATH", "value": "/tmp/aismart_bid"},
         {"name": "S3_TYPE", "value": "s3"},
         {"name": "S3_BUCKET_NAME", "value": "knowhere-storage-staging"},
diff --git a/deploy/ecs/test_render_task_definitions.py b/deploy/ecs/test_render_task_definitions.py
index 7d4bb39a..30248561 100644
--- a/deploy/ecs/test_render_task_definitions.py
+++ b/deploy/ecs/test_render_task_definitions.py
@@ -53,6 +53,7 @@
     "PDF_PROFILE_TOC_ENABLED": "true",
     "REDIS_SYNC_MAX_CONNECTIONS": "200",
     "SUMMARY_LLM_MAX_CONCURRENT": "8",
+    "WORKER_CONCURRENCY": "10",
 }