diff --git a/_includes/sidebar.html b/_includes/sidebar.html
index cec4e0b..0cc3f12 100644
--- a/_includes/sidebar.html
+++ b/_includes/sidebar.html
@@ -1,5 +1,5 @@
 <div class="sidebar">
-  <div class="container">
+  <div class="container sidebar-sticky">
     <div class="sidebar-about">
       <img src="/images/nq4t.png">
        <h1>