This paper considers whether Kant’s aesthetics withstands the challenge of conceptual art. I begin by looking at two competing views of conceptual art by recent philosophers, before settling on an ‘inclusive’ view of the form: conceptual art includes both ‘strong’ and ‘weak’ non-perceptual art (NPA). I then set out two kinds of conceptual complexity that I argue are implicated by all aesthetic judgements of art (as art) on Kant’s view: the concept of art itself, and the idea the work is meant to express (dependent beauty and aesthetic ideas, respectively). I go on to demonstrate the applicability of Kant’s aesthetics to conceptual art by considering two works by Lawrence Weiner, which I take to be a work of work of weak and strong NPA respectively.