diff --git a/docs/index.html b/docs/index.html
index 9ad69381..9216848d 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -478,7 +478,7 @@
                             </a>
                         </li>
                     </ul>
-                    <div class="footer-copyright">© 2021 th-ch</div>
+                    <div class="footer-copyright">© 2024 th-ch</div>
                 </div>
             </div>
         </div>