Update webhook configuration. You can update headers or/and status_rules.

webhook notification example:

{
  "headers": {
    "Content-Type": "application/json" // Change the headers
  },
  "status_rules": {
    "status_version": 2, // Change status version
    "allowed_status_names": [
      "delivered"   // Change the allowed status names
    ]
  }
}