diff --git a/gui/default/index.html b/gui/default/index.html
index 81569807a..9a87ede43 100755
--- a/gui/default/index.html
+++ b/gui/default/index.html
@@ -44,7 +44,7 @@
         </li>
         <li class="dropdown" language-select></li>
         <li class="hidden-xs">
-          <a href="http://docs.syncthing.net/intro/gui.html" target="_blank">
+          <a href="https://docs.syncthing.net/intro/gui.html" target="_blank">
             <span class="fa fa-book"></span>&nbsp;<span translate>Help</span>
           </a>
         </li>
@@ -58,7 +58,7 @@
             <li><a href="" ng-click="restart()"><span class="fa fa-fw fa-refresh"></span>&nbsp;<span translate>Restart</span></a></li>
             <li class="divider"></li>
             <li class="visible-xs">
-              <a href="http://docs.syncthing.net/intro/gui.html" target="_blank">
+              <a href="https://docs.syncthing.net/intro/gui.html" target="_blank">
                 <span class="fa fa-fw fa-book"></span>&nbsp;<span translate>Help</span>
               </a>
             </li>
@@ -565,7 +565,7 @@
     <div class="container">
       <ul class="nav navbar-nav">
         <li><a class="navbar-link" href="https://syncthing.net/" target="_blank"><span class="fa fa-home"></span>&nbsp;<span translate>Home page</span></a></li>
-        <li><a class="navbar-link" href="http://docs.syncthing.net/" target="_blank"><span class="fa fa-book"></span>&nbsp;<span translate>Documentation</span></a></li>
+        <li><a class="navbar-link" href="https://docs.syncthing.net/" target="_blank"><span class="fa fa-book"></span>&nbsp;<span translate>Documentation</span></a></li>
         <li><a class="navbar-link" href="https://forum.syncthing.net" target="_blank"><span class="fa fa-question-circle"></span>&nbsp;<span translate>Support</span></a></li>
         <li><a class="navbar-link" href="https://data.syncthing.net/" target="_blank"><span class="fa fa-bar-chart"></span>&nbsp;<span translate>Statistics</span></a></li>
         <li><a class="navbar-link" href="https://github.com/syncthing/syncthing/releases" target="_blank"><span class="fa fa-file-text-o"></span>&nbsp;<span translate>Changelog</span></a></li>