Rspec, rails 7 Update_column on date value not updating the record

after im upgrading to rails 7 and ruby 3, I'm facing one issue in rspec.

issue: whenever I'm using the update_column of date field of a column of the model in rspec, it shows the result of the update as true, but that value is not getting updated in the database.

Example:

My model. Dishes

it contains prepared time, and served time as date field: structure.sql file.

CREATE TABLE public.dishes (
          ....
          ....
          prepared_time date, 
          served_time date, 
          ......
)

my rspec

it "should send notification on updating served time" do
      dish.update_column(:prepared_date, (Time.zone.now).strftime('%m/%d/%Y'))
      params['orders'].merge!(served_time: [(Time.zone.now + 
      3.day).strftime('%m/%d/%Y')])
      response = put(:update, params)
      json = JSON.parse(response.body)
      expect(json).to eq(success_response)
end

here after debugging im found that the dish is not updated with prepared_date, as the prepared_date is nil, but when I try to update other fields, they are getting updated.

But the same spec works on rails 4.

what might be the reason??