diff --git a/proc-macro-error-attr/LICENSE-APACHE b/proc-macro-error-attr/LICENSE-APACHE
index 21f34ff..658240a 100644
--- a/proc-macro-error-attr/LICENSE-APACHE
+++ b/proc-macro-error-attr/LICENSE-APACHE
@@ -186,7 +186,7 @@ APPENDIX: How to apply the Apache License to your work.
    same "printed page" as the copyright notice for easier
    identification within third-party archives.
 
-Copyright 2019 CreepySkeleton <creepy-skeleton@yandex.ru>
+Copyright 2019-2020 CreepySkeleton <creepy-skeleton@yandex.ru>
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
diff --git a/proc-macro-error-attr/LICENSE-MIT b/proc-macro-error-attr/LICENSE-MIT
index d01f775..fc73e59 100644
--- a/proc-macro-error-attr/LICENSE-MIT
+++ b/proc-macro-error-attr/LICENSE-MIT
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2019 CreepySkeleton
+Copyright (c) 2019-2020 CreepySkeleton
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal