Approved marketo form not reflected on web page
I had a course dropdown field which was required to be populated from external api call. I was able to do it via marketo REST api by updating the field and approving it. I can see the updated values in dropdown in preview mode in marketo form, but the page using that marketo form is still showing the old values. I did hard refresh so many times. It took me 3-4 mins to get reflected. How can I get rid of it?
Can someone please help me.
TIA.