diff --git a/CHANGELOG.md b/CHANGELOG.md
index 53d2f32328..de952cb7d2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,7 @@ _Note: Gaps between patch versions are faulty/broken releases._
 
  * **Internal**
   * Upgrade `acorn-6to5`.
+  * Use `default` property on `6to5-runtime`.
 
 ## 3.6.2