  We find an explicit supergravity background dual to the $\Omega$-deformation
of a four-dimensional $\mathcal{N}=2$ SCFT on $\mathbb{R}^4$. The solution can
be constructed in the five-dimensional ${\cal N}=4^+$ gauged supergravity and
has a nontrivial self-dual 2-form. When uplifted to type IIB supergravity the
background is a deformation of AdS$_5\times S^5$ which preserves 16
supercharges. We also discuss generalizations of this solution corresponding to
turning on a vacuum expectation value for a scalar operator in the dual SCFT.
