diff --git a/www-ho600-com/index.html b/www-ho600-com/index.html
index 1cc85eb..3be55f8 100644
--- a/www-ho600-com/index.html
+++ b/www-ho600-com/index.html
@@ -693,7 +693,7 @@ <h2 class="text-center">Location</h2>
 
     <div class="container text-center">
 
-        <p>Copyright &copy; <span id="copyright_year">2014 ~ 2020</span> <strong><span class="text-danger">ho600 Ltd.</span></strong><br/>
+        <p>Copyright &copy; <span id="copyright_year">2014 ~ 2021</span> <strong><span class="text-danger">ho600 Ltd.</span></strong><br/>
 
             No.42-7, Dongrun Rd., Puli Township, Nantou County 545-020, Taiwan
             (R.O.C.) <br/>