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@@ -2083,7 +2083,7 @@ GitHub</a>, or install it directly with:</p>
 <ul>
 <li><a href="https://www.archlinux.org/packages/community/any/radicale/">ArchLinux</a>
 by David Runge</li>
-<li><a href="http://packages.debian.org/radicale">Debian</a> by Jonas
+<li><a href="https://packages.debian.org/radicale">Debian</a> by Jonas
 Smedegaard</li>
 <li><a href="https://packages.gentoo.org/packages/www-apps/radicale">Gentoo</a>
 by Ren&eacute; Neumann, Maxim Koltsov and Manuel R&uuml;ger</li>