title: Update Teamcity Configuration parameter specification using REST API
body: <p>I need to update the specification of a configuration parameter using Teamcity REST API. </p>
  
  <p><img src="https://i.stack.imgur.com/DKJ3W.jpg" alt="enter image description here"></p>
  
  <p>Following the <a href="http://confluence.jetbrains.com/display/TCD8/REST+API#RESTAPI-typedParamSpec" rel="nofollow noreferrer">REST documentation</a> I tried a PUT request with the parameter value like:</p>
  
  <pre><code>http://teamcity:80/httpAuth/app/rest/projects/TestProject/parameters/TestProjectParam
  </code></pre>
  
  <p>But this updates the value of the parameter, however I need to udpate the specification of the parameter. I am using Teamcity 8.0.6</p>