Good suggestion but I've had some students "game" this by being a little more mindful about that trigger pull. So, I put a dummy round or two in random positions in one of their mags and have them shoot away.Before you do anything, do this drill: Gun unloaded, aim at a target, focus your vision on the front sight, and pull the trigger as you normally would, observing the front sight's motion. 90% chance you will see it move down/left. This tells you... it's you.
If so, practice your trigger pull, repositioning your trigger finger and doing whatever other grip modification it requires to make that sight stay put throughout the trigger stroke. This exercise will improve your shooting of all handguns.