db/migrate/20140202020202_create_bookmarks.rb in blacklight-5.16.4 vs db/migrate/20140202020202_create_bookmarks.rb in blacklight-5.17.0

@@ -4,10 +4,10 @@
     create_table :bookmarks do |t|
       t.integer :user_id, :null=>false
       t.string :user_type
       t.string :document_id
       t.string :title
-      t.timestamps
+      t.timestamps null: false
     end
   end
 
   def self.down
     drop_table :bookmarks