Old CentOS 5.6, Due to github.com delete the TLSv1/TLSv1.1 support, How can I access to github.com/repo.git using git system

Now I have a cluster with Rocks 5.4 based on CentOS 5.6. When I git push the code to *github.com*, I run into the errors: >error: error:1407742E:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert protocol version while accessing http://github.com/ related link: https://unix.stackexchange.com/questions/438504/compile-git-to-use-openssl-library-libssl-so-1-0-1/444718#444718 https://githubengineering.com/crypto-removal-notice/ Hope someone give a solution. Thank you very much! Qiang