diff --git a/models/pipeline_task_steps.json b/models/pipeline_task_steps.json
index 1c0197e..a37f627 100644
--- a/models/pipeline_task_steps.json
+++ b/models/pipeline_task_steps.json
@@ -14,7 +14,7 @@
         {"name": "step_type", "title": "步骤类型(用于handler匹配)", "type": "str", "length": 64, "nullable": "no"},
         {"name": "display_name", "title": "显示名称", "type": "str", "length": 128},
         {"name": "step_order", "title": "执行顺序", "type": "int", "nullable": "no", "default": "0"},
-        {"name": "deps", "title": "依赖步骤(JSON数组)", "type": "text", "default": "'[]'"},
+        {"name": "deps", "title": "依赖步骤(JSON数组)", "type": "text"},
         {"name": "state", "title": "步骤状态", "type": "str", "length": 32, "nullable": "no", "default": "pending"},
         {"name": "error_msg", "title": "错误信息", "type": "text"},
         {"name": "started_at", "title": "开始执行时间", "type": "timestamp"},