diff --git a/History.markdown b/History.markdown
index f5f70c47..bd67cb13 100644
--- a/History.markdown
+++ b/History.markdown
@@ -24,6 +24,7 @@
   * Add webmentions.io plugin to the list of third-party plugins (#3127)
   * Add Sass mixins and use them. (#2904)
   * Slightly compress jekyll-sticker.jpg. (#3133)
+  * Update gridism and separate out related but custom styles. (#3132)
 
 ## 2.5.1 / 2014-11-09