git rebase -i HEAD~n
This will show a list of last n commit messages like this:
pick e499d89 Delete CNAME
pick 0c39034 Better README
pick f7fde4a Change the commit message but push the same commit.
Change the pick with reword, then save and exit.
pick e499d89 Delete CNAME
reword 0c39034 Better README // <-- I want to change this
pick f7fde4a Change the commit message but push the same commit.
Then all the commit messages with reword will show up one by one. Edit them. Finally force push them:
$ git push --force origin dev # <-- or other branch , say master
Reference: medium.com/@oleksii