diff --git a/2022/day13/aoc-c.c b/2022/day13/aoc-c.c
index db6e9d0..9f12f8b 100644
--- a/2022/day13/aoc-c.c
+++ b/2022/day13/aoc-c.c
@@ -1,6 +1,6 @@
 /* aoc-c.c: Advent of Code 2022, day 13
  *
- * Copyright (C) 2022 Bruno Raoult ("br")
+ * Copyright (C) 2022-2023 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.
  * Some rights reserved. See COPYING.
  *
diff --git a/2022/day14/aoc-c.c b/2022/day14/aoc-c.c
index f48229e..0f138c6 100644
--- a/2022/day14/aoc-c.c
+++ b/2022/day14/aoc-c.c
@@ -1,6 +1,6 @@
 /* aoc-c.c: Advent of Code 2022, day 14
  *
- * Copyright (C) 2022 Bruno Raoult ("br")
+ * Copyright (C) 2022-2023 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.
  * Some rights reserved. See COPYING.
  *
diff --git a/2022/day15/aoc-c.c b/2022/day15/aoc-c.c
index 40c95db..7c97bb7 100644
--- a/2022/day15/aoc-c.c
+++ b/2022/day15/aoc-c.c
@@ -1,6 +1,6 @@
 /* aoc-c.c: Advent of Code 2022, day 15
  *
- * Copyright (C) 2022 Bruno Raoult ("br")
+ * Copyright (C) 2022-2023 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.
  * Some rights reserved. See COPYING.
  *
diff --git a/2022/day16/Makefile b/2022/day16/Makefile
index 9091528..9fc981a 100644
--- a/2022/day16/Makefile
+++ b/2022/day16/Makefile
@@ -1,6 +1,6 @@
 # AOC daily Makefile - GNU make only.
 #
-# Copyright (C) 2021-2022 Bruno Raoult ("br")
+# Copyright (C) 2021-2023 Bruno Raoult ("br")
 # Licensed under the GNU General Public License v3.0 or later.
 # Some rights reserved. See COPYING.
 #
diff --git a/2022/day16/aoc.h b/2022/day16/aoc.h
index fb6f19a..fcd9246 100644
--- a/2022/day16/aoc.h
+++ b/2022/day16/aoc.h
@@ -1,6 +1,6 @@
 /* aoc.c: Advent of Code 2022
  *
- * Copyright (C) 2022 Bruno Raoult ("br")
+ * Copyright (C) 2022-2023 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.
  * Some rights reserved. See COPYING.
  *
diff --git a/2022/day16/common.bash b/2022/day16/common.bash
index 5af1e54..55db188 100644
--- a/2022/day16/common.bash
+++ b/2022/day16/common.bash
@@ -2,7 +2,7 @@
 #
 # common.bash: Advent of Code 2022, common bash functions
 #
-# Copyright (C) 2022 Bruno Raoult ("br")
+# Copyright (C) 2022-2023 Bruno Raoult ("br")
 # Licensed under the GNU General Public License v3.0 or later.
 # Some rights reserved. See COPYING.
 #
diff --git a/2022/day16/common.c b/2022/day16/common.c
index d8ac20b..b7363c0 100644
--- a/2022/day16/common.c
+++ b/2022/day16/common.c
@@ -1,6 +1,6 @@
 /* common.c: Advent of Code 2022, common functions
  *
- * Copyright (C) 2022 Bruno Raoult ("br")
+ * Copyright (C) 2022-2023 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.
  * Some rights reserved. See COPYING.
  *