diff --git a/_includes/foot.html b/_includes/foot.html
index 6e17a0b76..6315d0df8 100644
--- a/_includes/foot.html
+++ b/_includes/foot.html
@@ -1,12 +1,12 @@
   {% include about-the-site.html %}
-<script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/8.5/highlight.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/8.5/highlight.min.js"></script>
 
 {% comment %}<!-- https://github.com/highlightjs/cdn-release/tree/master/build/languages -->{% endcomment %}
 {% for lang in page.hljs_languages %}
-<script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/8.5/languages/{{lang}}.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/8.5/languages/{{lang}}.min.js"></script>
 {% endfor %}
 
-<script src="http://cdn.rawgit.com/rstacruz/unorphan/v1.0.1/index.js"></script>
+<script src="https://cdn.rawgit.com/rstacruz/unorphan/v1.0.1/index.js"></script>
 <script>hljs.initHighlightingOnLoad()</script>
 <script>unorphan('h1, h2, h3, p, li, .unorphan')</script>