Can only override parent theme styling with ‘!important’ in child style.css

function my_theme_enqueue_styles() {
    wp_enqueue_style( 'twentytwentyone-style', get_template_directory_uri() . '/style.css' );
    wp_enqueue_style( 'child-style',
        get_stylesheet_directory_uri() . '/style.css',
        array('twentytwentyone-style')
    );
}

add_action( 'wp_enqueue_scripts', 'my_theme_enqueue_styles' );

When I add styling changes to the child theme style.css file, I can see them listed in chrome dev tools, but crossed out and overridden by parent styling. I’ve only been able to override parent styling by adding !important to the child styling changes. How can make styling changes without !important, or is this the only way to make styling changes?