diff --git a/js/ditto.js b/js/ditto.js
index 0828dc9..9442f90 100644
--- a/js/ditto.js
+++ b/js/ditto.js
@@ -380,14 +380,14 @@ function router() {
       window.disqus_shortname = 'es6';
       window.disqus_identifier = (location.hash ? location.hash.replace("#", "") : 'READEME');
       window.disqus_title = $(ditto.content_id + " h1").text();
-      window.disqus_url = 'http://es6.ruanyifeng.com/' + (location.hash ? location.hash.replace("#", "") : 'README');
+      window.disqus_url = 'https://es6.ruanyifeng.com/' + (location.hash ? location.hash.replace("#", "") : 'README');
 
       // http://docs.disqus.com/developers/universal/
       (function() {
         var dsq = document.createElement('script');
         dsq.type = 'text/javascript';
         dsq.async = true;
-        dsq.src = 'http://' + window.disqus_shortname + '.disqus.com/embed.js';
+        dsq.src = 'https://' + window.disqus_shortname + '.disqus.com/embed.js';
         (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq);
       })();
     })();