diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7903e3a..5e297c3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,11 +3,6 @@
 All notable changes to the book will be documented in this file.
 
 
-## v2022.56 - 2022-11-04
-
-* The book bundle now contains a `.awz3` file in addition of the `.mobi` file for Kindle devices.
-
-
 ## v2022.56 - 2022-06-15
 
 * ch02: minor typos