diff --git a/js/common/view/pedigree/AlleleNode.ts b/js/common/view/pedigree/AlleleNode.ts
index 70c3fbd5..213e7feb 100644
--- a/js/common/view/pedigree/AlleleNode.ts
+++ b/js/common/view/pedigree/AlleleNode.ts
@@ -1,4 +1,4 @@
-// Copyright 2022, University of Colorado Boulder
+// Copyright 2022-2023, University of Colorado Boulder
 
 /**
  * AlleleNode displays the abbreviation and icon for an allele.
diff --git a/js/common/view/population/PopulationPlotsNode.ts b/js/common/view/population/PopulationPlotsNode.ts
index 1fa9cdaa..a7473ed0 100644
--- a/js/common/view/population/PopulationPlotsNode.ts
+++ b/js/common/view/population/PopulationPlotsNode.ts
@@ -1,4 +1,4 @@
-// Copyright 2020-2022, University of Colorado Boulder
+// Copyright 2020-2023, University of Colorado Boulder
 
 /**
  * PopulationPlotsNode is the complete set of plots for the Population graph, clipped to the graph's grid.