West Ham plan to lower the cost of food and drink in the London Stadium after criticisms from fans emerged last week.
The Hammers came under fire from supporters online over the price of a pint of beer at their home ground during their season opener against Manchester City.
But the club have since been in contact with the relevant companies to discuss the breach in their Concessions Agreement and plan to make immediate changes.
Pictures of the refreshments menu at the London Stadium showed Moretti and Heineken on draught for a whopping £7.60, with a bottle of Coca-Cola priced at £4.50.
Hundreds of supporters quickly took to social media to criticise the Hammers for holding fans to ransom during a cost-of-living crisis.
As they look to make changes, the club have been in contact with London Stadium 165 and Delaware North, who control the concession pricing at the stadium, over the breach in the Concessions Agreement.
Under the Refreshments, Catering and Ancillary Services sub-heading, the agreement states: 'The Grantor and/or the Grantor Party shall ensure that the terms and conditions relating to the Catering Contracts, including without limitation as to the prices for food, refreshments and beverages and the corresponding service levels in respect thereof match (to the best of the Grantor's knowledge) the mean average of equivalent terms and conditions at the Comparable Clubs'.
Essentially, this states that the prices for concessions sold in the stadium must be near the average price for similar refreshments at 'Comparable Clubs' - which are defined as the three leading clubs in London as determined by the capacity of their home ground.
Therefore West Ham's prices should be no higher than those offered at Tottenham, Arsenal or Chelsea.
The Hammers are hoping to have prices amended in time for their next home game, when they take on Danish outfit Viborg in the Europa Conference League qualifier next Thursday.