git filter-branch --env-filter '
    oldname="<old_name>"
    oldemail="<old_email>"
    newname="<new_name>"
    newemail="<new_email>"
    [ "$GIT_AUTHOR_EMAIL"="$oldemail" ] && GIT_AUTHOR_EMAIL="$newemail"
    [ "$GIT_COMMITTER_EMAIL"="$oldemail" ] && GIT_COMMITTER_EMAIL="$newemail"
    [ "$GIT_AUTHOR_NAME"="$oldname" ] && GIT_AUTHOR_NAME="$newname"
    [ "$GIT_COMMITTER_NAME"="$oldname" ] && GIT_COMMITTER_NAME="$newname"
    ' HEAD

git push -f