abstract: We build measurable holomorphic motions for Julia sets of holomorphic families of endomorphisms of CP(k) under various equivalent notions of stability. This generalizes the well-known result obtained by Mane-Sad-Sullivan and Lyubich in dimension 1 and leads to a coherent definition of the bifurcation locus in this setting. Since the usual 1-dimensional techniques no longer apply in higher dimension, our approach is based on ergodic and pluripotential methods. This is a joint work with François Berteloot.