oracle中db link 问题

Error starting at line 1 in command:
select * from manager@master
Error at Command Line:1 Column:22
Error report:
SQL Error: ORA-28002: the password will expire within 7 days
28002. 00000 -  "the password will expire within %s days"
*Cause:    The user's account is about to about to expire and the password
           needs to be changed
*Action:   change the password or contact the DBA这样的问题怎么解决？？？