diaper leaking up back every other day...

JK
Ugh we have tried a couple diff brands and all of them leaked up the back... have to do a complete outfit change him once or twice a day. We tried diff diapers awhile ago tho when he was 1 month old. The ones we have been using seem to reduce the amount of leaking diapers but still every other day?? And it's all the way up the back not just a little.
Is this normal or should we change?