You can freely alter, i.e increase, the memory limit for WordPress.

Follow the steps given below to increase the memory limit:

1. First, log in to your cPanel, using your account.
   
   
2. Next, go to the Files section and click on File Manager.
   
   
   
   
3. Inside the File Manager, browse to your domain’s root folder. It is generally public_html for the main domain and addon domain. Choose the wp-config.php file and then click the Edit button.
   
   
   
   
4. A pop-up window will open, here you need to select the encoding of the file. Then click on Edit.    
   
   
   
   
5. Next, the editing window will open. Add the code given below:

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

/* That's all, stop editing! Happy blogging. */

Any memory limit of your preference can be assigned to replace ‘256M‘.  Next click on the Save Changes button.

After that, a success message will flash, which means that the memory limit for your WordPress site is set.