To turn off auto-update in for your WordPress website, follow the steps below.

1. Use a ftp program or a cPanel file management program to access your WordPress files.
2. Locate the 'wp-config.php' file in the root directory of your WordPress install.
3. Open add this like of code to your 'wp-config.php' code./* Disable WordPress automatic updates */
   define( 'WP_AUTO_UPDATE_CORE', false );
4. I recommend you add this code just above the note that says '/* That's all, stop editing! Happy blogging. */'.