diff --git a/app/models/user.rb b/app/models/user.rb
index 26a321bcc..1fee098fb 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -160,7 +160,7 @@ class User < Owner
 
   # 教学案例
   # has_many :libraries, dependent: :destroy
-  has_many :project_trends, dependent: :destroy
+  has_many :project_trends
   has_many :oauths , dependent: :destroy
 
   has_many :organization_users, dependent: :destroy