diff --git a/wiki/footer.html b/wiki/footer.html
index c689ade33e8f3dd26390c16b3d1c3dc65ff065f7..76cfae9d44324727b7aabe696857081944aaab0f 100644
--- a/wiki/footer.html
+++ b/wiki/footer.html
@@ -43,7 +43,7 @@
 
         <div class="col-lg-6 col-xs-12">
           <h4></h4>
-          <p style="margin-top: 25px;" class="mb-0 text-center"><small>Tsinghua University, Hai Dian, Beijing</small></p>
+          <p style="margin-top: 20px;" class="mb-0 text-center"><small>Tsinghua University, Hai Dian, Beijing</small></p>
           <p class="mb-0 text-center"><small>+86 12345678900 igemtsinghua2024@gmail.com</small></p>
         </div>
       </div>