diff --git a/2019/Makefile b/2019/Makefile
index 0f947ba..415cdac 100644
--- a/2019/Makefile
+++ b/2019/Makefile
@@ -1,6 +1,6 @@
 # AOC Makefile - GNU make only.
 #
-# Copyright (C) 2021 Bruno Raoult ("br")
+# Copyright (C) 2021-2022 Bruno Raoult ("br")
 # Licensed under the GNU General Public License v3.0 or later.
 # Some rights reserved. See COPYING.
 #
diff --git a/2019/day01/Makefile b/2019/day01/Makefile
index 7100584..7a1c6da 100644
--- a/2019/day01/Makefile
+++ b/2019/day01/Makefile
@@ -1,6 +1,6 @@
 # AOC daily Makefile - GNU make only.
 #
-# Copyright (C) 2021 Bruno Raoult ("br")
+# Copyright (C) 2021-2022 Bruno Raoult ("br")
 # Licensed under the GNU General Public License v3.0 or later.
 # Some rights reserved. See COPYING.
 #
diff --git a/2019/day02/Makefile b/2019/day02/Makefile
index 7100584..7a1c6da 100644
--- a/2019/day02/Makefile
+++ b/2019/day02/Makefile
@@ -1,6 +1,6 @@
 # AOC daily Makefile - GNU make only.
 #
-# Copyright (C) 2021 Bruno Raoult ("br")
+# Copyright (C) 2021-2022 Bruno Raoult ("br")
 # Licensed under the GNU General Public License v3.0 or later.
 # Some rights reserved. See COPYING.
 #
diff --git a/2019/day03/Makefile b/2019/day03/Makefile
index 7100584..7a1c6da 100644
--- a/2019/day03/Makefile
+++ b/2019/day03/Makefile
@@ -1,6 +1,6 @@
 # AOC daily Makefile - GNU make only.
 #
-# Copyright (C) 2021 Bruno Raoult ("br")
+# Copyright (C) 2021-2022 Bruno Raoult ("br")
 # Licensed under the GNU General Public License v3.0 or later.
 # Some rights reserved. See COPYING.
 #
diff --git a/2019/day04/Makefile b/2019/day04/Makefile
index 7100584..7a1c6da 100644
--- a/2019/day04/Makefile
+++ b/2019/day04/Makefile
@@ -1,6 +1,6 @@
 # AOC daily Makefile - GNU make only.
 #
-# Copyright (C) 2021 Bruno Raoult ("br")
+# Copyright (C) 2021-2022 Bruno Raoult ("br")
 # Licensed under the GNU General Public License v3.0 or later.
 # Some rights reserved. See COPYING.
 #
diff --git a/2019/day05/Makefile b/2019/day05/Makefile
index 7100584..7a1c6da 100644
--- a/2019/day05/Makefile
+++ b/2019/day05/Makefile
@@ -1,6 +1,6 @@
 # AOC daily Makefile - GNU make only.
 #
-# Copyright (C) 2021 Bruno Raoult ("br")
+# Copyright (C) 2021-2022 Bruno Raoult ("br")
 # Licensed under the GNU General Public License v3.0 or later.
 # Some rights reserved. See COPYING.
 #
diff --git a/2019/day06/Makefile b/2019/day06/Makefile
index 7100584..7a1c6da 100644
--- a/2019/day06/Makefile
+++ b/2019/day06/Makefile
@@ -1,6 +1,6 @@
 # AOC daily Makefile - GNU make only.
 #
-# Copyright (C) 2021 Bruno Raoult ("br")
+# Copyright (C) 2021-2022 Bruno Raoult ("br")
 # Licensed under the GNU General Public License v3.0 or later.
 # Some rights reserved. See COPYING.
 #
diff --git a/2019/day07/Makefile b/2019/day07/Makefile
index 7100584..7a1c6da 100644
--- a/2019/day07/Makefile
+++ b/2019/day07/Makefile
@@ -1,6 +1,6 @@
 # AOC daily Makefile - GNU make only.
 #
-# Copyright (C) 2021 Bruno Raoult ("br")
+# Copyright (C) 2021-2022 Bruno Raoult ("br")
 # Licensed under the GNU General Public License v3.0 or later.
 # Some rights reserved. See COPYING.
 #
diff --git a/2019/include/pool.h b/2019/include/pool.h
index 7f070bd..a207012 100644
--- a/2019/include/pool.h
+++ b/2019/include/pool.h
@@ -1,6 +1,6 @@
 /* pool.h - A simple memory pool manager.
  *
- * Copyright (C) 2021 Bruno Raoult ("br")
+ * Copyright (C) 2021-2022 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.
  * Some rights reserved. See COPYING.
  *