diff --git a/js/macro/model/MacroModel.ts b/js/macro/model/MacroModel.ts
index ab98fe68..505a54be 100644
--- a/js/macro/model/MacroModel.ts
+++ b/js/macro/model/MacroModel.ts
@@ -1,4 +1,4 @@
-// Copyright 2013-2022, University of Colorado Boulder
+// Copyright 2022, University of Colorado Boulder
 
 /**
  * MacroModel is the model for the 'Micro' screen.  It extends the PHModel, substituting a different solution
diff --git a/js/macro/model/MacroSolution.ts b/js/macro/model/MacroSolution.ts
index 8886ef15..f4ed392d 100644
--- a/js/macro/model/MacroSolution.ts
+++ b/js/macro/model/MacroSolution.ts
@@ -1,4 +1,4 @@
-// Copyright 2020-2022, University of Colorado Boulder
+// Copyright 2022, University of Colorado Boulder
 
 /**
  * MacroSolution is the solution model used in the Macro screen.