diff --git a/content.html b/content.html
index 36a81b8..b7a65c1 100644
--- a/content.html
+++ b/content.html
@@ -1,6 +1,6 @@
 <h1>Markdown文件</h1>
 
-<p><img src="http://markdown.tw/images/208x128.png" alt="Markdown" title="" /></p>
+<p><img src="https://markdown.tw/images/208x128.png" alt="Markdown" title="" /></p>
 
 <p><strong>NOTE:</strong> This is Traditional Chinese Edition Document of
 Markdown Syntax. If you are seeking for English Edition 
diff --git a/index.html b/index.html
index 7aecb70..bed6866 100644
--- a/index.html
+++ b/index.html
@@ -24,7 +24,7 @@
         <div class="wikistyle">
 <h1>Markdown文件</h1>
 
-<p><img src="http://markdown.tw/images/208x128.png" alt="Markdown" title="" /></p>
+<p><img src="https://markdown.tw/images/208x128.png" alt="Markdown" title="" /></p>
 
 <p><strong>NOTE:</strong> This is Traditional Chinese Edition Document of
 Markdown Syntax. If you are seeking for English Edition 
diff --git a/resources.html b/resources.html
index cf9b713..c376b38 100644
--- a/resources.html
+++ b/resources.html
@@ -24,7 +24,7 @@
         <div class="wikistyle">
 <h1>Markdown 資源</h1>
 
-<p><img src="http://markdown.tw/images/208x128.png" alt="Markdown" title="" /></p>
+<p><img src="https://markdown.tw/images/208x128.png" alt="Markdown" title="" /></p>
 
 <h2>Spec</h2>
 
diff --git a/resources.md b/resources.md
index 8770253..f754cec 100644
--- a/resources.md
+++ b/resources.md
@@ -1,6 +1,6 @@
 # Markdown 資源
 
-![Markdown](http://markdown.tw/images/208x128.png)
+![Markdown](https://markdown.tw/images/208x128.png)
 
 ## Spec
 
diff --git a/resources_content.html b/resources_content.html
index caab331..83df03e 100644
--- a/resources_content.html
+++ b/resources_content.html
@@ -1,6 +1,6 @@
 <h1>Markdown 資源</h1>
 
-<p><img src="http://markdown.tw/images/208x128.png" alt="Markdown" title="" /></p>
+<p><img src="https://markdown.tw/images/208x128.png" alt="Markdown" title="" /></p>
 
 <h2>Spec</h2>
 
diff --git a/syntax.md b/syntax.md
index 7f3f295..88cce78 100644
--- a/syntax.md
+++ b/syntax.md
@@ -1,7 +1,7 @@
 Markdown文件
 ==================
 
-![Markdown](http://markdown.tw/images/208x128.png)
+![Markdown](https://markdown.tw/images/208x128.png)
 
 **NOTE:** This is Traditional Chinese Edition Document of
 Markdown Syntax. If you are seeking for English Edition