diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index d4ac94f..3cfbae9 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,5 +1,6 @@
 Unreleased changes
 ------------------
+* Change input flux convention (for input value gamma from E^gamma to E^-gamma)
 
 v1.1.1
 ----------------------------