change depreciation amount

I bought a  $400,000 rental property (condo) last year.  The land value was entered as $20,000. The land value was entered too low in last year tax return. It seems the land value should be $80,000 or $120,000.  Can I change the land value to $80,000 or $120,000 this year without any tax problems in current year and future years?

Thanks!