diff --git a/LICENSE b/LICENSE
index 67753d5..fe098b9 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License
 
-© 2014-2022 1024jp
+© 2014-2023 1024jp
 
 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/README.md b/README.md
index 22aebca..2f26806 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,6 @@ color.getHue(hue: &hue, saturation: &saturation, lightness: &lightness, alpha: &
 License
 -----------------------------
 
-© 2014-2022 1024jp.
+© 2014-2023 1024jp.
 
 The source code is distributed under the terms of the __MIT License__. See the bundled [LICENSE](LICENSE) for details.