diff --git a/download/index.html b/download/index.html
index 39bdfc55..a83c5936 100644
--- a/download/index.html
+++ b/download/index.html
@@ -3,8 +3,8 @@ title: Download for Windows, Mac or Linux
 layout: default
 priority: 1.0
 releases_url: https://github.com/angryziber/ipscan/releases
-sourceforge_url: http://sourceforge.net/projects/ipscan/files/ipscan3-binary/
-binary_url: http://github.com/angryziber/ipscan/releases/download/
+sourceforge_url: https://sourceforge.net/projects/ipscan/files/ipscan3-binary/
+binary_url: https://github.com/angryziber/ipscan/releases/download/
 ---
 
 <h1>{{ page.title }}</h1>
@@ -96,12 +96,12 @@ binary_url: http://github.com/angryziber/ipscan/releases/download/
 
       <p>
         Download version <b>2.21</b> below (120 kb) or
-        <a href="http://sourceforge.net/projects/ipscan/files/ipscan2-binary/">browse all 2.x releases</a>
+        <a href="https://sourceforge.net/projects/ipscan/files/ipscan2-binary/">browse all 2.x releases</a>
       </p>
 
       <ul>
         <li>
-          <a href="http://sourceforge.net/projects/ipscan/files/ipscan2-binary/2.21/ipscan221.exe">ipscan.exe</a> for Windows <i>98/ME/2000/XP</i>
+          <a href="https://sourceforge.net/projects/ipscan/files/ipscan2-binary/2.21/ipscan221.exe">ipscan.exe</a> for Windows <i>98/ME/2000/XP</i>
         </li>
       </ul>
 
@@ -121,7 +121,7 @@ binary_url: http://github.com/angryziber/ipscan/releases/download/
     <h2><a href="#source">Source code</a></h2>
     <div class="content">
       <p>
-        The source code is available on <a href="http://github.com/angryziber/ipscan">Github</a>, and licensed under the terms of <a href="http://www.gnu.org/licenses/old-licenses/gpl-2.0.html">GPL v2</a>.
+        The source code is available on <a href="https://github.com/angryziber/ipscan">Github</a>, and licensed under the terms of <a href="http://www.gnu.org/licenses/old-licenses/gpl-2.0.html">GPL v2</a>.
       </p>
 
       <p>
@@ -130,7 +130,7 @@ binary_url: http://github.com/angryziber/ipscan/releases/download/
       </p>
 
       <p>
-        Source code of older 2.x versions is available in the <a href="http://github.com/angryziber/ipscan/tree/ipscan2"><i>ipscan2</i> branch</a>.
+        Source code of older 2.x versions is available in the <a href="https://github.com/angryziber/ipscan/tree/ipscan2"><i>ipscan2</i> branch</a>.
         Please note, however, that it has nothing in common with current, version 3.x code.
       </p>