diff --git a/LICENSE b/LICENSE
index 8c2236251..898908bf2 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,5 +1,4 @@
-Copyright (c) 2009-2020 Jeremy Ashkenas, DocumentCloud and Investigative
-Reporters & Editors
+Copyright (c) 2009-2021 Jeremy Ashkenas, Julian Gonggrijp, and DocumentCloud and Investigative Reporters & Editors
 
 Permission is hereby granted, free of charge, to any person
 obtaining a copy of this software and associated documentation
diff --git a/modules/index.js b/modules/index.js
index dd607faad..a5ef079d3 100644
--- a/modules/index.js
+++ b/modules/index.js
@@ -3,7 +3,7 @@
 
 //     Underscore.js 1.12.1
 //     https://underscorejs.org
-//     (c) 2009-2020 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+//     (c) 2009-2021 Jeremy Ashkenas, Julian Gonggrijp, and DocumentCloud and Investigative Reporters & Editors
 //     Underscore may be freely distributed under the MIT license.
 
 // Baseline setup.
diff --git a/underscore-esm.js b/underscore-esm.js
index ea67bfcf1..bda1ef601 100644
--- a/underscore-esm.js
+++ b/underscore-esm.js
@@ -1,6 +1,6 @@
 //     Underscore.js 1.12.1
 //     https://underscorejs.org
-//     (c) 2009-2020 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+//     (c) 2009-2021 Jeremy Ashkenas, Julian Gonggrijp, and DocumentCloud and Investigative Reporters & Editors
 //     Underscore may be freely distributed under the MIT license.
 
 // Current version.
diff --git a/underscore.js b/underscore.js
index d1208359d..4cd4afc14 100644
--- a/underscore.js
+++ b/underscore.js
@@ -9,7 +9,7 @@
 }(this, (function () {
   //     Underscore.js 1.12.1
   //     https://underscorejs.org
-  //     (c) 2009-2020 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+  //     (c) 2009-2021 Jeremy Ashkenas, Julian Gonggrijp, and DocumentCloud and Investigative Reporters & Editors
   //     Underscore may be freely distributed under the MIT license.
 
   // Current version.