diff --git a/cmd/nv/main.go b/cmd/nv/main.go
index c16449f..b3057fe 100644
--- a/cmd/nv/main.go
+++ b/cmd/nv/main.go
@@ -1,4 +1,4 @@
-// Copyright 2015-2018 Jean-Philippe Couture
+// Copyright 2015-2021 Jean-Philippe Couture
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
diff --git a/internal/parser/parser.go b/internal/parser/parser.go
index f0caf79..7593893 100644
--- a/internal/parser/parser.go
+++ b/internal/parser/parser.go
@@ -1,4 +1,4 @@
-// Copyright 2015-2018 Jean-Philippe Couture
+// Copyright 2015-2021 Jean-Philippe Couture
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
diff --git a/internal/parser/parser_test.go b/internal/parser/parser_test.go
index 75d65a1..175e7db 100644
--- a/internal/parser/parser_test.go
+++ b/internal/parser/parser_test.go
@@ -1,4 +1,4 @@
-// Copyright 2015-2018 Jean-Philippe Couture
+// Copyright 2015-2021 Jean-Philippe Couture
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal