The latest version of Android available for your phone is Android OS, v4.1 (Jelly Bean). There is no plan or information related to upgrade possibility to KitKat 4.2.2. According to the official information, the phone was released with Android 4.1. To check for updates go to Settings > About phone > Software Update and make sure to connect to a WiFi network with a good Internet speed in case you might need to download something.
