diff --git a/source/css/_layout/sidebar/sidebar.styl b/source/css/_layout/sidebar/sidebar.styl
index dc6194f..b635ff6 100644
--- a/source/css/_layout/sidebar/sidebar.styl
+++ b/source/css/_layout/sidebar/sidebar.styl
@@ -61,13 +61,13 @@
     if hexo-config('style.animated_avatar.animate') == 'always'
       div.bg
         opacity: 1 !important
-        animation: spin infinite 1s
+        animation: spin infinite 4s
         animation-timing-function: linear
     if hexo-config('style.animated_avatar.animate') == 'auto'
       &:hover
         div.bg
           opacity: 1 !important
-          animation: spin infinite 1s
+          animation: spin infinite 4s
           animation-timing-function: linear
 
   a.title