fixing "no such app as" error in heroku deployment after application rename

I did few changes in my toy project and pushed it to heroku with

git push heroku master

but got this error:

!  No such app as myOldApplicationName.

fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

I googled a bit to see that this is due to my application rename in heroku website. The previous name was "myOldApplicationName". Then I searched my .git directory to see if there are references to the old application name. I found it under "config".

[remote "heroku"]
 url = git@heroku.myOldApplicationName.git

Edit it with your new application to fix the issue.

[remote "heroku"]
 url = git@heroku.com:myNewApplicationName.git