Ferrari has used three of its engine tokens on this weekend's upgrade, the FIA confirmed in a note sent to teams tonight.
The details of Ferrari's upgrade had not previously been officially revealed by the governing body, and on Friday team boss Maurizio Arrivabene would only say that the team had used “a couple” of its token allocation.
As had previously been reported Mercedes has used all seven of its 2015 tokens this weekend.
The updated FIA figures for tokens remaining are as follows:
Mercedes: 0 (7 used in Italy)
Ferrari: 4 (3 used in Italy, 6 total during the 2015 season)
Honda: 4 (5 in total during the 2015 season)