diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2f291ad2a..3ee13904f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ## [unreleased]
 
 ### Changed
+- **Breaking:** Elixir >=1.9 is now required (was >= 1.8)
 - In Conversations, return only direct messages as `last_status`
 - MFR policy to set global expiration for all local Create activities
 - OGP rich media parser merged with TwitterCard