CPT with custom datatable insert, update

Hello,

I have a CPT with ACF and I have managed to get those fields to save to a custom datatable.
How can I update the same ACF values, with same post_id, while I’m updating the CPT.
Here is what I have done so far.
Now how to update this?

add_action('acf/save_post', 'my_acf_save_post');
  function my_acf_save_post( $post_ID ) {
                global $wpdb;
	        $table = $wpdb->prefix.'analiza';
                $ime_radnika_1 = get_field('ime_radnika_1', $post_ID);
		$data = array('post_ID'=>$post_ID,'name' => $ime_radnika_1);
		$format = array('%d','%s');
		$wpdb->insert($table,$data,$format);
}