diff --git a/CHANGELOG.md b/CHANGELOG.md
index 873ed74d..1c9b1eb1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ### Bug Fixes
 
+- Remove duplicate CSS definitions. [#2666](https://github.com/mmistakes/minimal-mistakes/pull/2666)
 - Fix `entries_layout: grid` in various layouts. [#2639](https://github.com/mmistakes/minimal-mistakes/issues/2639)
 - Change `fa` to `fas` for Font Awesome 5. [#2649](https://github.com/mmistakes/minimal-mistakes/pull/2649)
 
diff --git a/docs/_docs/18-history.md b/docs/_docs/18-history.md
index a8892f9a..a3ea029f 100644
--- a/docs/_docs/18-history.md
+++ b/docs/_docs/18-history.md
@@ -5,12 +5,13 @@ permalink: /docs/history/
 excerpt: "Change log of enhancements and bug fixes made to the theme."
 sidebar:
   nav: docs
-last_modified_at: 2020-08-04T12:59:39-04:00
+last_modified_at: 2020-08-30T20:31:39-04:00
 toc: false
 ---
 
 ## Unreleased
 
+- Remove duplicate CSS definitions. [#2666](https://github.com/mmistakes/minimal-mistakes/pull/2666)
 - Fix `entries_layout: grid` in various layouts. [#2639](https://github.com/mmistakes/minimal-mistakes/issues/2639)
 - Change `fa` to `fas` for Font Awesome 5. [#2649](https://github.com/mmistakes/minimal-mistakes/pull/2649)