The weight of Formula 1 cars will be increased from the 2010 season under new technical regulations, the FIA announced on Thursday.
The ruling body said the minimum weight for cars from next season will be 620kg, rather than the current 605kg.
The move is aimed at not putting heavier drivers at a disadvantage due to the introduction of KERS, which has hindered taller drivers like BMW Sauber's Robert Kubica.
Pole Kubica has raced with KERS just once this year, as the increased weight did not allow him to play with ballast and thus improve his car's balance.
But the technical rules published by the FIA on Thursday moved to solve that, increasing the cars' minimum weight by 15kg.