diff --git a/doc/html/index.html b/doc/html/index.html
index c8367b31..c71d8bdf 100644
--- a/doc/html/index.html
+++ b/doc/html/index.html
@@ -70,7 +70,7 @@ <h1><a class="anchor" id="autotoc_md0"></a>
 <h1><a class="anchor" id="autotoc_md1"></a>
 API Reference</h1>
 <ul>
-<li><a href="http://wolkykim.github.io/qlibc/doc/html/files.html">qlibc Core API Reference</a><ul>
+<li><a href="https://wolkykim.github.io/qlibc/doc/html/files.html">qlibc Core API Reference</a><ul>
 <li>Containers for Key/Value pairs<ul>
 <li>Tree Table &mdash; in binary tree(left-leaning red-black tree) data structure.</li>
 <li>Hash Table &mdash; in hash-based data structure.</li>
@@ -97,13 +97,13 @@ <h1><a class="anchor" id="autotoc_md1"></a>
 </li>
 </ul>
 </li>
-<li><a href="http://wolkykim.github.io/qlibc/doc/html/files.html">qLibc Extension API Reference</a><ul>
+<li><a href="https://wolkykim.github.io/qlibc/doc/html/files.html">qLibc Extension API Reference</a><ul>
 <li>Apache-style Configuration File Parser.</li>
 <li>INI-style Configuration File Parser.</li>
 <li>HTTP client.</li>
 <li>Rotating File Logger.</li>
 <li>Database(MySQL) interface.</li>
-<li><a href="http://en.wikipedia.org/wiki/Token_bucket">Token-Bucket</a></li>
+<li><a href="https://en.wikipedia.org/wiki/Token_bucket">Token-Bucket</a></li>
 </ul>
 </li>
 </ul>