Strakka Dome LMP2 has withdrawn from the race because they has a serious accident recently at Spa:
But the field will remain at 56 as written here:
"The entry for Le Mans on June 14/15 will remain at 56 cars after the US Krohn Racing Ferrari team, which is run out of the Risi Competizione workshops in Texas, accepted a late invite from race organiser the Automobile Club de l'Ouest to take part in the GTE Am division.
Its Ferrari 458 Italia will be raced by team owner Tracy Krohn, long-time team-mate Nic Jonsson and Briton Ben Collins, who was replaced by Archie Hamilton in the Ram Racing Ferrari line-up earlier this month."