Order status doesn't get updated when cancelling an order in Mailchimp

[jcarlosebizmarts]

Preconditions

1. Magento 1.9.4.5
2. Mailchimp 1.1.21

Steps to reproduce

1. Create an Order in Magento
2. Wait for Mailchimp for Magento to sync the order
3. Cancel the Order in Magento Backend
4. Wait 5 minutes
5. Check via Postman order status

Expected result

1. The order gets updated and appears as canceled in Mailchimp

Actual result

1. The order doesn't appear as canceled in Mailchimp.