diff --git a/LICENSE b/LICENSE
index ee709b3..8964731 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2020 Alessandro Mauri
+Copyright (c) 2021 Alessandro Mauri
 
 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/hkd.c b/hkd.c
index b77ff9d..614f850 100644
--- a/hkd.c
+++ b/hkd.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020 Alessandro Mauri
+ * Copyright (c) 2021 Alessandro Mauri
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal