diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3abe9297f..c446c6316 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -38,6 +38,7 @@
 ### Implements
 
 - Update the Markdown syntax to fix highlighting strikethrough.
+- Disable color wells in the theme editor when they use the system color.
 - Improve the User Guide contents.
 - [non-AppStore ver.] Update Sparkle from 2.6.2 to 2.6.3.