The Russian Navy reportedly removed the Granit missile tubes in the late 2000s to make room for a larger hangar bay, but it was never clear that the tubes were ever actually removed. During a major overhaul set to begin in September 2017, the P-700 tubes will be replaced with new vertical launch tubes capable of housing newer Kalibr and P-800 Oniks cruise missiles. Air defense upgrades will include replacement of the Kashtan CIWS with the Panstyr-M and the 3K95 Kinzhal/Tor system with the Poliment-Redut system.