DW Purity Child Theme

I have set up a child theme for DW Purity, but it is loading the child CSS prior to dw-purity.min.css so my custom styles are being overridden unless I use !important.
style.css header looks like this:
/*
Theme Name: DW Purity – CHILD
Author: 200 Megaton Creative, llc
Version: 1.0.0
Template: dw-purity
*/
functions.php looks like this:
<?php
function my_theme_enqueue_styles() {

    $parent_style = \’dw-purity-style\’; // This is \’twentyfifteen-style\’ for the Twenty Fifteen theme.

    wp_enqueue_style( $parent_style, get_template_directory_uri() . \’/style.css\’ );
    wp_enqueue_style( \’dw-purity-child-style\’,
        get_stylesheet_directory_uri() . \’/style.css\’,
        array( $parent_style ),
        wp_get_theme()->get(\’Version\’)
    );
}
add_action( \’wp_enqueue_scripts\’, \’my_theme_enqueue_styles\’ );
?>