This did not prevent new revolts, which were violently punished by Amédée VI; he ordered the town of Sion to be pillaged and partially burnt down. Although the castle was not affected by the revolts, the Count of Savoy asked the vice-bailiff to improve the defences of Tourbillon. The modifications included building new trebuchets, glacis at the bases of the castle walls and digging ditches on the plateau east of the castle. More than 5,000 crossbow bolts and several thousand trebuchet stones were stored in the castle, hoardings were built at the top of the castle walls and tower and the castle cistern was filled in the event of a siege.