An article of footwear has a height adjustable heel. A heel assembly is coupled to a toe assembly. A sole assembly is disposed over the heel assembly. A hinge assembly joins the sole assembly and heel assembly at a junction with the toe assembly. The hinge assembly has a locking mechanism, which allows the sole assembly to pivot with respect to the heel assembly to adjust a height of the sole assembly over the heel assembly when the locking mechanism is disengaged. The height of the sole assembly over the heel assembly is fixed when the locking mechanism is engaged. The heel assembly has a first inner support and the sole assembly has a second inner support. A pin coupled to a sprocket engages and disengages the first inner support and the second inner support to adjust a height of the sole assembly with respect to the heel assembly.