diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8ae8411..9f9c978 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
 ## [Unreleased](https://github.com/fgrehm/letter_opener_web/compare/v2.0.0...master)
 
+  - Add dark mode. [#119](https://github.com/fgrehm/letter_opener_web/pull/119)
   - Allow dot (`.`) character in attachment file names. [#131](https://github.com/fgrehm/letter_opener_web/pull/131)
   - Reliably strip Attachment links from the sidebar. [#132](https://github.com/fgrehm/letter_opener_web/pull/134)