The upgrading of the coking gasoline fraction in a reactor with a fluidized bed of a zeolite-containing catalyst is studied with the aim of enhancing the octane number. The use of the products obtained from upgrading a mixture of catalytically cracked and coking gasoline fractions is shown to be expedient for producing AI-93 high-octane gasoline, which helps solve the problem of expanding the raw-material resources for the production of high-octane unleaded gasoline.