diff --git a/resources.md b/resources.md
index cc758cf..1793480 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)
 
 Logo
 ----
diff --git a/syntax.md b/syntax.md
index 3a6284d..947eb4d 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