Mothercare will be closing 60 stores by June 2019, instead of the 50 they predicted prior.
The closures will put 900 jobs at risk, up from the 800 previously stated.
Mothercare also confirmed that it would be raising another £32.5m from its existing shareholders by issuing new shares.
Mothercare's chief executive, Mark Newton-Jones, told the BBC's Today programme that its UK business had suffered from a lack of investment and "hadn't had a lick of paint" in recent years.
However, its rescue plan would now allow it to modernise as a retailer.
He said: "We will really be able to speed up the transformation, and by God we need to speed up the transformation, because the retail landscape is pretty brutal at the moment."
