An adjustable hinge assembly (10) for securing a boot lid to the body of a vehicle has a mounting member (22) for attachment to the body. An adjustment member (24) is connected to the mounting member for pivotal movement about a first axis X and a hinge arm (18) on which the boot lid is mounted is connected to the adjustment member for pivotal movement about a second axis Y parallel to but spaced from the first axis. An adjusting mechanism (26) is operative to selectively adjust the pivotal position of the adjustment member (24) relative to the mounting member (22) in order to adjust the position of the boot lid relative to a body in a vertical direction.