How to update server running SBS 2008 R2 ver 6.0 (build 6001 sp2) to SBS 2008 R2 ver 6.1 (build 7601 SP1)

I am seeking guidance on how to update a MS server running SBS 2008 R2 ver 6.0 (build 6001 sp2) to SBS 2008 R2 ver 6.1 (build 7601 SP1). 

This is required as a ix to support the MozyPro client (off site back up and recover service) which has a new version released to support TLS 2.0 and needs SBS 2008 r2 ver 6.1 (Build 7601 SP1) to allow installation of the new client.)

rgds Michael