Various embodiments of the present invention provide systems and methods for performing updates of credentials used in relation to RFID readers. As an example, some embodiments of the present invention provide methods for updating credentials capable of authorization to an RFID reader. Such methods include providing a cellular telephone that includes a memory, a cellular telephone interface, and an nfc interface. An access is received via the cellular telephone interface, and is stored to the memory. Communication with an RFID reader is initiated via the nfc interface, and the access update is provided to the RFID reader for authorization.