updating exim fails

when I run #prt-get sysup in the end exim does not update. trying to update it I get: syst...done > pwd...done type I ... done > cwd (1) /pub/exim/exim4...done size exim-4.84.tar.bz2...done pasv...done > retr exim-4.84.tar.bz2 ... no such file `exim-4.84.tar.bz2` error downloading `ftp://ftp.exim.org/pub/exim/exim4/exim-4.84.tar.bz2` failed packages where update failed exim