uGUI Canvas allocating memory with each score change

Maybe I'm simply not understanding things right but is there anyway to change the text contents of a UI.Text without the canvas re-rendering having to allocate memory each frame? (i.e. score, timers, etc).

In my case, when ever the user makes a score, I lerp the value of the score increase each frame so that the score can be seen as to be "counting up". I just think it looks more exciting this way and is often done. So a score increase of 100 will increase the on screen GUI score display by 1 over the course of 100 frames or function "Update" -- which ever terminology you prefer. (I am aware of the method to use coroutines but that is another discussion).

My issue is, when looking at the profiler, I notice that the canvas redraw is triggered -- which is not necessarily surprising, but that it allocates memory each frame when the score display changes -- 0.7KB in my case.

Is there anyway I can prevent this? I'd really hate to give up the "counting up" feature.

Thanks, Manny