The invention relates to a method of managing a software update of a plurality of remote-reading terminals (T1-T9) to be updated in a remote-reading installation comprising a plurality of access points (P1-P3) and a management server (1), comprising steps of transmitting a message for planning reception of the update data to said plurality of remote-reading terminals (T1-T9) to be updated, of selecting a set of access points from among said plurality of access points (P1-P3) in such a way as to limit the number of access points used to disseminate said update data, and of sending said update data through said selected set of access points.