diff --git a/source/about/index.md b/source/about/index.md
index e5f00d6..2bed6ae 100644
--- a/source/about/index.md
+++ b/source/about/index.md
@@ -27,7 +27,7 @@ Icarus supports several comment services, give you better choices to communicate
 
 ### Post Banner & Thumbnail
 
-Thanks to [atika](https://github.com/atika), you can now add thumbnails and banners to every post to create better reading experience.
+Thanks to [atika](https://github.com/atika), you can now [add thumbnails or banners](https://github.com/ppoffice/hexo-theme-icarus/wiki/Theme#thumbnail) to every post to create better reading experience.
 
 ### Responsive Layout
 
diff --git a/themes/icarus b/themes/icarus
index 974141a..b6e0c3a 160000
--- a/themes/icarus
+++ b/themes/icarus
@@ -1 +1 @@
-Subproject commit 974141abd6d04d090f9f914e955d8e3c69aff3a6
+Subproject commit b6e0c3a9fd0593bbb87f5d6c05bf55c88b962ea6