Wordpress WP - High memory usage notification

Hi, I don't stop getting this email from a WP site:

Subject: [site.com] High memory usage notification
WordPress memory usage exceeded 32 MB
WordPress peak memory usage: 60.33 MB
Number of database queries: 145

I tried adding to wp-config.php

define('WP_MEMORY_LIMIT', '96M');
define('WP_MAX_MEMORY_LIMIT', '256M');

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But still keep getting the alerts. Seems that PHP doesn't get the new variables.

How to fix this ? thanks

 

Yes found it, thanks master