diff --git a/HISTORY.rst b/HISTORY.rst
index f12304f..e9601e1 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -5,4 +5,4 @@ History
 0.1.0 (2022-12-26)
 ------------------
 
-* initial package.
+* separate the hydrodynamic model from Hapi package.