diff --git a/collection/uni-id-task/collection.json b/collection/uni-id-task/collection.json
index 22b378c..bcd9988 100644
--- a/collection/uni-id-task/collection.json
+++ b/collection/uni-id-task/collection.json
@@ -8,15 +8,18 @@
       },
       "name": {
         "bsonType": "string",
-        "description": "任务名称"
+        "description": "任务名称",
+        "title": "任务名称"
       },
       "comment": {
         "bsonType": "string",
-        "description": "任务描述"
+        "description": "任务描述",
+        "title": "任务描述"
       },
       "bounty": {
         "bsonType": "int",
-        "description": "任务完成后的奖励积分"
+        "description": "任务完成后的奖励积分",
+        "title": "奖励积分"
       },
       "max_per_hour": {
         "bsonType": "int",
@@ -32,7 +35,10 @@
       },
       "create_date": {
         "bsonType": "timestamp",
-        "description": "创建时间"
+        "description": "创建时间",
+        "defaultValue": {
+          "$env": "now"
+        }
       }
     }
   },