Cleaner way to update nested structures

Say I have got following two case classes:

case class Address(street: String, city: String, state: String, zipCode: Int)
case class Person(firstName: String, lastName: String, address: Address)

and the following instance of Person class:

val raj = Person("Raj", "Shekhar", Address("M Gandhi Marg", 
                                           "Mumbai", 
                                           "Maharashtra", 
                                           411342))

Now if I want to update zipCode of raj then I will have to do:

val updatedRaj = raj.copy(address = raj.address.copy(zipCode = raj.address.zipCode + 1))

With more levels of nesting this gets even more uglier. Is there a cleaner way (something like Clojure's update-in) to update such nested structures?