Upgrading to WordPress 2.8.4

I am trying to upgrade to 2.8.4, but it is not allowing me to. This message appears:

Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 2357046 bytes) in /home/sportsgi/public_html/soccerusa1/wp-includes/http.php on line 1331

Can anyone lead me in the right direction?

Thanks.