How to assign pgtype.UUIDArray to []uuid.UUID?

I use Go + Postgres. To work with Postgres I use pgx. I have an array of UUID in my Postgres table and a Struct with []*uuid.UUID (from github.com/gofrs/uuid) in Go (see code below).

The problem is that I always get error when I try to use AssignTo function

cannot: decode &pgtype.UUIDArray{Elements:[]pgtype.UUID(nil), Dimensions:[]pgtype.ArrayDimension(nil), Status:0x2} into *[]*uuid.UUID

(I have tried to use all combinations with pointers and it doesn't work)

My struct (for API):

type Book struct {
    AuthorIds []*uuid.UUID `json:"author_ids"`
}

My struct (for working with Postgres):

type PgBook struct {
    AuthorIds pgtype.UUIDArray `db:"author_ids"`
}

And I use AssignTo function from pgx

err := pgBook.AuthorIds.AssignTo(&book.AuthorIds)

How to solve this problem?