diff --git a/VERSION.md b/VERSION.md
index 5d41259..69fd753 100644
--- a/VERSION.md
+++ b/VERSION.md
@@ -1,5 +1,9 @@
 # Version history
 
+## Unreleased
+
+* Added --output command-line option
+
 ## Version 1.5.0
 
 * Improved animation rules for ER and AW sounds