Github Warning: the ECDSA host key for ‘github.com’ differs from the key for the IP address

Warning: the ECDSA host key for 'github.com' differs from the key for the IP address '140.82.112.3'
Offending key for IP in /home/me/.ssh/known_hosts:6
Matching host key in /home/me/.ssh/known_hosts:17
Are you sure you want to continue connecting (yes/no)? yes

solution as per github: https://github.blog/news-insights/company-news/we-updated-our-rsa-ssh-host-key/

$ ssh-keygen -R github.com  
$ curl -L https://api.github.com/meta | jq -r '.ssh_keys | .[]' | sed -e 's/^/github.com /' >> ~/.ssh/known_hosts