Is your dog even slightly overweight?
if so that could be why s/he is snubbing their nose at the kibble.

its what happened with my dog until i put her on a diet an she never snubs her nose at her kibble anymore,, in fact she eats it with gusto now.

or is your dog older? older dogs can become picky an like gravy mixed in with their kibble or having their dry kibble soaked in warm water until its super soft an poofy before being fed it.

this site may help you in searching for a different brand of kibble if youre wanting to change it:
https://www.dogfoodadvisor.com/