diff --git a/doc.html b/doc.html
index 824585b4..3d728fdd 100644
--- a/doc.html
+++ b/doc.html
@@ -21,7 +21,7 @@
 <div class="shell">
   <div class="shell-b">
     <div id="header">
-      <img src="css/images/gpxsee.png" alt="" class="logo"/><h1 class="logo"><a href="http://www.gpxsee.org">GPXSee</a></h1>
+      <img src="css/images/gpxsee.png" alt="" class="logo"/><h1 class="logo"><a href="https://www.gpxsee.org">GPXSee</a></h1>
       <div id="navigation">
         <ul>
           <li><a href="index.html">Home</a></li>
diff --git a/gallery.html b/gallery.html
index 3f04ef69..47dcb32b 100644
--- a/gallery.html
+++ b/gallery.html
@@ -22,7 +22,7 @@
 <div class="shell">
   <div class="shell-b">
     <div id="header">
-      <img src="css/images/gpxsee.png" alt="" class="logo"/><h1 class="logo"><a href="http://www.gpxsee.org">GPXSee</a></h1>
+      <img src="css/images/gpxsee.png" alt="" class="logo"/><h1 class="logo"><a href="https://www.gpxsee.org">GPXSee</a></h1>
       <div id="navigation">
         <ul>
           <li><a href="index.html">Home</a></li>
diff --git a/index.html b/index.html
index 50e64180..9f76d4f3 100644
--- a/index.html
+++ b/index.html
@@ -25,7 +25,7 @@
 <div class="shell">
   <div class="shell-b">
     <div id="header">
-      <img src="css/images/gpxsee.png" alt="" class="logo"/><h1 class="logo"><a href="http://www.gpxsee.org">GPXSee</a></h1>
+      <img src="css/images/gpxsee.png" alt="" class="logo"/><h1 class="logo"><a href="https://www.gpxsee.org">GPXSee</a></h1>
       <div id="navigation">
         <ul>
           <li><a href="index.html" class="active">Home</a></li>