Fatal error: Allowed memory size of and Upgrade wordpress

This error show up when I try to upgrade wordpress to 2.8.5 using “update-core.php”

upgrade_wordpress2

Downloading update from http://wordpress.org/wordpress-2.8.5.zip.

Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 2354671 bytes) in /home1/xxxxxxxxx/public_html/hostingformula.info/wp-includes/http.php on line 1331

Yes, I use shared hosting and it won’t show up on my other host ( I host on VPS server using slicehost).

This problem easily solved using wordpress plugin such as WordPress Automatic Upgrade.
 Click Plugins -> Add New

Type “upgrade wordpress” and click install.