Revalidate on-demand a Next.js site from Django model’s save method

I have a next.js site deployed to Vercel, that fetches data from an API provided by Django. Next.js has this new feature (Incremental Static Regeneration On-Demand) where you can rebuild a specific page without need to rebuild the entire site with an url like this:

https://<my-site.com>/api/revalidate?secret=my-token

I need the next.js site rebuild some pages when the database changes, so it shows the new data, and i tried to make a request (with requests package) in the save method like this:

def save(self, *args, **kwargs):
    super(MyModel, self).save(*args, **kwargs)
    r = requests.get("https://<my-site.com>/api/revalidate?secret=<my-token>")

It seems to work when it trigger that url from my browser, but it doesn’t work when i trigger it from Django. The response of this Response object (r) is a 200 Status Code, as expected, with {“revalidated”:true} (r.text), but it doesn’t update the site anyways.

How can i implement this?