diff --git a/sandbox.c b/sandbox.c
index 3df78f4..d24e602 100644
--- a/sandbox.c
+++ b/sandbox.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020 Omar Polo <op@omarpolo.com>
+ * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above