diff --git a/js/common/view/TriangleNode.js b/js/common/view/TriangleNode.js
index 2795e238d..ea7a6dd31 100644
--- a/js/common/view/TriangleNode.js
+++ b/js/common/view/TriangleNode.js
@@ -1,4 +1,4 @@
-// Copyright 2016-2020, University of Colorado Boulder
+// Copyright 2016-2021, University of Colorado Boulder
 
 /**
  * Triangle indicators used in the paint gradient and apple graph.