Despite Commons' bars and restaurants already being subsidised by £5.8 million of taxpayer's money, some MPs have called for even cheaper alcohol prices.
Currently the price of beverages is linked to - and kept lower than - a local Wetherspoons.
A number of Parliamentarians reacted angrily when caterers indicated prices would rise with inflation and asked for prices to be linked to cheaper pubs outside the centre of the capital, reports the Sun.
A bottle of Becks in the Strangers bar costs £2.70 and a pint of Guinness is £3.60.
A Parliament webpage states: "Selling prices in the House of Commons bars are kept broadly in line with the prices charged in nearby pubs operated by a well-known high-street chain and, in this sense, the prices are not subsidised."
TaxPayers’ Alliance chief executive Matthew Sinclair said in a statement: "Politicians could not be more out of touch in demanding a bigger subsidy for their booze and meals.
"MPs should not be immune from price rises, especially when many families are struggling just to put food on the table.
"It's time the taxpayer subsidy of Westminster was axed, not increased."
Some may argue another reason not to lower the price of drinks in the Commons.
Last year Eric Joyce was arrested for head-butting a Tory MP in a boozy brawl.