Incorrect Date Value

[highway11]

Get the following when attempting to run rake db:data:load

ActiveRecord::StatementInvalid: Mysql2::Error: Incorrect date value: '02/19/2018' for column 'start_date' at row 1: INSERT INTO holidays (id,start_date,description,auto_generated,created_at,updated_at) VALUES (1,'02/19/2018','Louis Riel Day',1,'2018-02-08 23:00:00','2018-02-08 23:00:00')