Update link to tmc course

Author: nygrenh

securing/index.html

@@ -221,7 +221,7 @@ <h5>Possible issues:</h5>
             <ul>
               <li>You may use other clients for Test My Code such as the <a href="https://github.com/testmycode/tmc-cli" target="_blank">TMC command line client</a> and the <a href="https://plugins.jetbrains.com/plugin/8551" target="_blank">TMC IntelliJ plugin</a>. Both of these are in <i>beta</i> though so they won't work as reliably as the Netbeans plugin.</li>
 
-              <li>You can retrieve the assignment templates from the <a href="https://tmc.mooc.fi/org/mooc/courses/267" target="_blank">TMC course page</a>, complete them locally, and submit them to TMC as a zip using the previous site. Note that you must retain the original folder structure. </li>
+              <li>You can retrieve the assignment templates from the <a href="https://tmc.mooc.fi/org/mooc/courses/383" target="_blank">TMC course page</a>, complete them locally, and submit them to TMC as a zip using the previous site. Note that you must retain the original folder structure. </li>
             </ul>