Drinks at the Pool Bar on Harmony of the Seas

(1:32 p.m. EDT) -- Royal Caribbean is raising the price of its beverage packages for departures in 2019, from 10 percent on its Deluxe Beverage Package to 40 percent for the line's all-inclusive soda package.

The change, which was quietly added to the Royal Caribbean website, comes days after Norwegian Cruise Line raised the price of its drink packages to record highs.

Onboard pricing for Royal Caribbean's Deluxe Beverage Package, which includes cocktails, beer, wine, specialty coffees, bottled water and other non-alcoholic beverages, will rise from the current price of $57 to $63 per day to $63 to $70 per day for sailings in 2019.

Royal Caribbean's Refreshment Package, including specialty coffees, teas and other non-alcoholic beverages, rises to a flat rate of $29 per day for all 2019 sailings, up from a range of $26 to $29 per day on 2018 voyages.

The Soda Package sees the largest increase percentage-wise. It will now cost $12.99 per day on 2019 voyages to enjoy unlimited fountain soda and refills in any venue, up from between $8.50 to $9.50 per day on 2018 cruises.

Like most lines, Royal Caribbean requires all guests of legal drinking age staying in the same stateroom under the same booking number to purchase the same beverage package. Cruisers aren't allowed to share packages with other people or family members travelling in other staterooms; Royal Caribbean warns that those who don't obey this rule can have their package revoked without compensation.

The requirement means the price can really add up for those who want to purchase the Soda Package for a family of four. Under the 2018 pricing structure, a family of four on a seven-day cruise would have spent $238 for this package. In 2019, that same package will run a family of four on a weeklong cruise $363.

--By Aaron Saunders, Cruise Critic Contributor