function wfocu_remove_drip_actions() {
	if ( class_exists( 'WC_Drip_Events' ) ) {
		$drip_event = WC_Drip_Events::get_instance();
		remove_action( 'woocommerce_payment_complete', array( $drip_event, 'new_order' ) );
		add_action( 'woocommerce_thankyou', 'wfocu_run_drip_on_thankyou', 10, 1 );
	}
}

function wfocu_run_drip_on_thankyou( $order_id ) {
	$order = wc_get_order( $order_id );
	if ( class_exists( 'WC_Drip_Events' ) && $order->has_status( wc_get_is_paid_statuses() ) ) {
		$drip_event = WC_Drip_Events::get_instance();
		$drip_event->new_order( $order_id );
	}
}

add_action( 'wp', 'wfocu_remove_drip_actions', 999 );