The Celebrity Constellation will receive a number of new restaurants including the Top Deck Burger Bar, the Qsine restaurant and the Rooftop Terrace.
In addition, better quality door locks are being installed while the penthouses and royal suites will also receive a makeover, as will the shopping area.
Celebrity Cruises president and chief executive Lisa Lutoff-Perlo said: “We are continually pushing the boundaries of the cruise experience, so we are adding some incredible new features to Celebrity Constellation.
The refurbishment comes in time for the crusie ship’s summer programme which includes visits to the Mediterranean, the Arabian Coast, India, and the Far East.
