How do I upgrade OpenSSL?
OpenSSL is provided by the OS, which restricts what versions of OpenSSL are available for your server. You can upgrade the subversion version of OpenSSL with the OS's package manager, but you have to upgrade the OS to upgrade the minor version of OpenSSL. For example, you could upgrade version 1.1.1i to 1.1.1k using the package manager. However, you have to upgrade the OS if you want to upgrade OpenSSL from 1.0.1 to 1.1.1.