diff --git a/index.html b/index.html
index 9c456abdaa21cde1ecf910eaa2bc1133e54c9cc6..656041a1632bc83bb4dd52a3ad5e61b438dfe641 100644
--- a/index.html
+++ b/index.html
@@ -1,10 +1,10 @@
 <html>
   <head>
-    <meta http-equiv="refresh" content="0; url=http://spack.readthedocs.io/" />
+    <meta http-equiv="refresh" content="0; url=https://spack.readthedocs.io/" />
   </head>
   <body>
     <p>
-      This page has moved to <a href="http://spack.readthedocs.io/">http://spack.readthedocs.io/</a>
+      This page has moved to <a href="https://spack.readthedocs.io/">https://spack.readthedocs.io/</a>
     </p>
   </body>
 </html>