diff --git a/packages/ui-default/templates/main.html b/packages/ui-default/templates/main.html
index 9d6a3051c..2a5039472 100644
--- a/packages/ui-default/templates/main.html
+++ b/packages/ui-default/templates/main.html
@@ -81,7 +81,6 @@
           <h2 class="section__title">{{ _('Chinese') }}</h2>
           <ol class="chip-list">
             <li class="chip-list__item"><a class="typo-a" href="https://www.cometoj.com/" target="_blank">CometOJ</a></li>
-            <li class="chip-list__item"><a class="typo-a" href="https://acm.hdu.edu.cn/" target="_blank">HDUOJ</a></li>
             <li class="chip-list__item"><a class="typo-a" href="https://loj.ac/" target="_blank">LibreOJ</a></li>
             <li class="chip-list__item"><a class="typo-a" href="https://www.luogu.com.cn/" target="_blank">洛谷</a></li>
             <li class="chip-list__item"><a class="typo-a" href="https://uoj.ac/" target="_blank">UOJ</a></li>