HTTP/1.1 405 Method Not Allowed as a respond

I try https://developer.atlassian.com/jiradev/jira-apis/jira-rest-apis/jira-rest-api-tutorials/jira-rest-api-example-edit-issues with my own credentials

curl -D- -u fred:fred -X PUT --data {see below} -H "Content-Type: application/json" http://kelpie9:8081/rest/api/2/issue/QA-31

but it throws an error as HTTP/1.1 405 Method Not Allowed

what can be the problem?

via mmu36478