Will buy a duplex. Current tenant re is way lower than the market

[Michelle Harrington]

I want to buy this duplex and found out that the 2 current tenants just signed a new lease for a way lower rent than the market that will expire next year July 2022. My question is, once I buy the duplex, as a new owner, can I change their rent price? I'm thinking of increasing according to median rent range and this will help me get a decent return.