diff --git a/CHANGES.rst b/CHANGES.rst
index 166d0f3b8c4f5be7ca3d2a7aa105e9975dd5ec6a..fd942f69eb5f84f0944bc76869b36b90643fec2a 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -4,7 +4,9 @@ Changes
 0.9.2 (unreleased)
 ------------------
 
-- only minor changes like fixing doc typos.
+- Fixed #33. Make `en_eff` the new default wordlist. This results in slightly
+  decreased entropy per word (12.92 bits instead of 13.0), but provides prefix
+  code and better memorizable words. Thanks to @anarcat for the suggestion.
 
 
 0.9.1 (2016-12-24)