diff --git a/changelog.txt b/changelog.txt
index e3bd3156..e6c0369e 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -20,6 +20,7 @@ OPENSEADRAGON CHANGELOG
 * Requesting keyboard focus when viewer is clicked (#537)
 * Arrow key navigation fixed across platforms (#565)
 * Removed textarea element from viewer DOM. Viewer.canvas now handles keyboard navigation (#569)
+* Removed 'position' property from MouseTracker keyDownHandler/keyUpHandler/keyHandler functions (#573)
 
 1.2.0: