diff --git a/public/react/src/modules/tpm/NewHeader.js b/public/react/src/modules/tpm/NewHeader.js
index a9d24340..45be29bd 100644
--- a/public/react/src/modules/tpm/NewHeader.js
+++ b/public/react/src/modules/tpm/NewHeader.js
@@ -304,7 +304,7 @@ class NewHeader extends Component {
 													<a href="/competitions">在线竞赛</a>
 													<img className="roundedRectangles" src="/images/educoder/roundedRectangle.png"/>
                         </li>
-											  <li><a href="/libraries">教学案例</a></li>
+											  <li><a href="/moop_cases">教学案例</a></li>
 										  	<li className={`${competitions === true ? 'active' : ''}`} style={{display:project_packages_url===null||project_packages_url===undefined||project_packages_url===""?'none':'block'}} >
 													<a href="/crowdsourcing">
 														{project_packages_url===null||project_packages_url===undefined||project_packages_url===""?'':'众包'}