Error : Upgrading to 2.8.5 Wordpress

I was getting a error while upgrating wordpress to 2.8.5- Downloading update from http://wordpress.org/wordpress-2.8.5.zip.
Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 2354937 bytes) in /home1/ottousco/satmareanul.com/wp-includes/http.php on line 1324

Might need to increase the amount of memory a PHP script may consume

1. If you have access to your PHP.ini file, change the line in PHP.ini
If your line shows 32M try 64M:
memory_limit = 64M ; Maximum amount of memory a script may consume (64MB)

2. If you don't have access to PHP.ini try adding this to an .htaccess file:
php_value memory_limit 64M

3. Try adding this line to your wp-config.php file:
define('WP_MEMORY_LIMIT', '64M');

4. Talk to your host.