Upper Back Caving on Squats

Set a new pb for my squat recently but now ive notice my upper back seems to cave grinding out the limit weights how could I remedy this?

Force your elbows under the bar harder and more back work.

thoracic strength?
seated GM would be a good exercise

Thanks for the input lads. I squat with a fairly high bar placement could this be a factor

For high bar the elbows down/chest up cue is very important and make sure you don’t sit back too much. Also get bigger traps.

To add to the suggestions already present, I like front squats and SSB squats a lot for this. Front squats help me keep my back arched and SSB squats help teach me to grind my upper back back to the right position if it does round. But without the form cues mentioned above, that extra upper back strength won’t carry over as much as you might like.

Arched back good mornings with various stances will bring up the static strength of these muscles very fast, it is an upper spine issue with the extensors probably. Front squats are another great choice. For GM’s and front squats try 5-6 reps maxes.

Yeah god forbid its something simple like technique. Its got to be something exotic and complicated.

push your head back into the bar, try to bend the bar etc. if none of the standard cues work, target your upper back with your accessory work.