  We consider the socle deformations arising from formal deformations of a
class of Koszul self-injective special biserial algebras which occur in the
study of the Drinfeld double of the generalized Taft algebras. We show, for
these deformations, that the Hochschild cohomology ring modulo nilpotence is a
finitely generated commutative algebra of Krull dimension 2.
