Update table through Cursor in Sql Server

Create PROCEDURE  UpdateBankDate

as
begin

DECLARE @VoucherId  int
DECLARE @BankDate  datetime

DECLARE curNewList CURSOR
   FAST_FORWARD
    FOR
       SELECT Voucher_Id,bank_date  From DataTableVoucherBankDate 
       OPEN curNewList
            FETCH NEXT FROM curNewList into @VoucherId, @BankDate
                 While @@FETCH_STATUS = 0
                     begin
                          UPDATE vouchers  Set BankDate = @BankDate  From DataTableVoucherBankDate 
                          Where Vouchers.voucher_id = @VoucherId
                          FETCH NEXT FROM curNewList into @VoucherId, @BankDate
                     end
      close curNewList
     deallocate curNewList