diff --git a/Changelog.md b/Changelog.md
index 903dd40..56aa80b 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -4,6 +4,8 @@
 
 Refactoring of internally used function.
 
+Add functions to convert Sphere and GenericBox to AABB.
+
 ## Version 2.1.0
 
 Refactoring of internally used function(s).