diff --git a/docs/uniCloud/cf-database.md b/docs/uniCloud/cf-database.md
index b0ea7bec284547d6a32860c6af97d1b8c7e0ec5b..380f260236c6791c33a29076d8dc723dc346e22f 100644
--- a/docs/uniCloud/cf-database.md
+++ b/docs/uniCloud/cf-database.md
@@ -5487,7 +5487,7 @@ db.command.aggregate.log([<number>, <base>])
  
 ```js
 const $ = db.command.aggregate
-let res = await db.collection('staff').aggregate()
+let res = await db.collection('curve').aggregate()
   .project({
     log: $.log(['$x', 2])
   })
@@ -6480,7 +6480,7 @@ db.command.aggregate.size(<array>)
  
 ```js
 const $ = db.command.aggregate
-let res = await db.collection('staff').aggregate()
+let res = await db.collection('shops').aggregate()
   .project({
     totalStaff: $.size('$staff')
   })