A program update management server includes a storage unit configured to store an update program for updating a program to be managed, a setting unit configured to set an update timing in accordance with each client in which the program to be managed is installed, an update recommending unit configured to transmit information regarding recommendation of an update so that the client acquires the update program at the update timing, and a program transmitting unit configured to transmit the update program, at the update timing, to the client that receives the information regarding recommendation of an update.