diff --git a/scripts/create_tables.py b/scripts/create_tables.py
index 0d7b0e8..4dfbd76 100644
--- a/scripts/create_tables.py
+++ b/scripts/create_tables.py
@@ -121,7 +121,8 @@ CREATE TABLE IF NOT EXISTS sd_work_envs (
 _V2_COLUMNS = {
     "pipelines": {"agent_config": "text"},
     "sd_org_settings": {"agent_config": "text"},
-    "pipeline_tasks": {"retry_count": "int NOT NULL DEFAULT 0", "last_error": "text"},
+    "pipeline_tasks": {"retry_count": "int NOT NULL DEFAULT 0", "last_error": "text",
+                       "parent_id": "varchar(32) NULL", "depends_on": "text NULL"},
 }
 
 # app_audit 审计日志表（原 app_audit/init.py::_init_audit 启动时建，现迁到部署期）