diff --git a/CHANGELOG.md b/CHANGELOG.md
index a06780b10..7978ea43c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 ChangeLog
 =========
 
+破壊的変更のみ記載。
+
+This document only describes breaking changes.
+
 4.0.0
 -----