He had announced in an earlier tally that 30 people had been killed in the blast.
There are still 24 injured in hospitals.
Rescuers have been looking since prime Sunday morning the bodies under the rubble of the building in the historic center of Havana.
According to the tourism ministry, the explosion occurred on Saturday due to a gas leak as a truck supplied the hotel, destroying four floors of the five-story building.
The hotel was in restructuring phase in due to its opening on May 10, after two years of closure due to the Covid pandemic.
The building was built in 1880 to contain shops, and has been transformed in hotel in 1933 and then in a luxury hotel in 2005.