It’s pretty easy to increase the upload limit in wordpress.
Use .htaccess increase the upload limit in wordpress
Go into the web root of your wordpress installation. Create a file named “.htaccess”. Usually there already is one – edit it in this case.
You need two line in there:
php_value upload_max_filesize 10M php_value post_max_size 10M
The Upload Limit in wordpress is now increased up to 10 Megabyte. If you need more, well write something else into it.
Another option is to increase the limit in the wp-config.php, also in the web root of your wordpress installation. Add the following line:
define('WP_MEMORY_LIMIT', '10M');