[SciPy-User] update scipy to v.0.15 from spyder on windows seven 64 bits

Dear community, I've the latest python (x,y) distribution (2.7.9.0) which incorporates spyder 2.3.2-14 and scipy 0.14.0-7. Unfortunately, I need scipy 0.15 to use the new scipy.optimize.differential_evolution() function. How should I proceed to (easily) update scipy from my spyder? Best, Mathieu