what happen if I change my Repository from GitHub to Bitbucket but my app is on Heroku

Question

I hosted my Django app In Heroku using github repo, but now i want to change my repository from github repo to BitBucket repo, does that would deleted my application in heroku ?

i'm a begineer in Heroku and also github, but because I get confused using both, I found out Bitbucket is easier to work with heroku, for me.