Change the repository source

First check the source of your repository.

git remote -v

Rename the current source to ensure that there will be no conflict.

git remote rename originname ancient-origin

Define the new repository source.

git remote add origin repository_address

Check if the changes occurred as requested.

git remote -v

To avoid the accumulation of sources, remove the old source.

git remote rm ancient-origin

Again, check that the changes have occurred as requested.

git remote -v