diff --git a/src/hw_timer_pico.cpp b/src/hw_timer_pico.cpp
index 6ea4b1c..9e4ff48 100644
--- a/src/hw_timer_pico.cpp
+++ b/src/hw_timer_pico.cpp
@@ -1,22 +1,22 @@
-/***************************************************************************
- *   This file is part of Dimmable Light for Arduino, a library to         *
- *   control dimmers.                                                      *
- *                                                                         *
- *   Copyright (C) 2018-2022  Fabiano Riccardi                             *
- *                                                                         *
- *   Dimmable Light for Arduino is free software; you can redistribute     *
- *   it and/or modify it under the terms of the GNU Lesser General Public  *
- *   License as published by the Free Software Foundation; either          *
- *   version 2.1 of the License, or (at your option) any later version.    *
- *                                                                         *
- *   This library is distributed in the hope that it will be useful,       *
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
- *   Lesser General Public License for more details.                       *
- *                                                                         *
- *   You should have received a copy of the GNU General Public License     *
- *   along with this program; if not, see <http://www.gnu.org/licenses/>   *
- ***************************************************************************/
+/******************************************************************************
+ *  This file is part of Dimmable Light for Arduino, a library to control     *
+ *  dimmers.                                                                  *
+ *                                                                            *
+ *  Copyright (C) 2018-2023  Fabiano Riccardi                                 *
+ *                                                                            *
+ *  Dimmable Light for Arduino is free software; you can redistribute         *
+ *  it and/or modify it under the terms of the GNU Lesser General Public      *
+ *  License as published by the Free Software Foundation; either              *
+ *  version 2.1 of the License, or (at your option) any later version.        *
+ *                                                                            *
+ *  This library is distributed in the hope that it will be useful,           *
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU          *
+ *  Lesser General Public License for more details.                           *
+ *                                                                            *
+ *  You should have received a copy of the GNU Lesser General Public License  *
+ *  along with this library; if not, see <http://www.gnu.org/licenses/>.      *
+ ******************************************************************************/
 
 #if defined(ARDUINO_ARCH_RP2040) && !defined(ARDUINO_ARCH_MBED)
 
diff --git a/src/hw_timer_pico.h b/src/hw_timer_pico.h
index e4cc08f..603b349 100644
--- a/src/hw_timer_pico.h
+++ b/src/hw_timer_pico.h
@@ -1,22 +1,22 @@
-/***************************************************************************
- *   This file is part of Dimmable Light for Arduino, a library to         *
- *   control dimmers.                                                      *
- *                                                                         *
- *   Copyright (C) 2018-2022  Fabiano Riccardi                             *
- *                                                                         *
- *   Dimmable Light for Arduino is free software; you can redistribute     *
- *   it and/or modify it under the terms of the GNU Lesser General Public  *
- *   License as published by the Free Software Foundation; either          *
- *   version 2.1 of the License, or (at your option) any later version.    *
- *                                                                         *
- *   This library is distributed in the hope that it will be useful,       *
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
- *   Lesser General Public License for more details.                       *
- *                                                                         *
- *   You should have received a copy of the GNU General Public License     *
- *   along with this program; if not, see <http://www.gnu.org/licenses/>   *
- ***************************************************************************/
+/******************************************************************************
+ *  This file is part of Dimmable Light for Arduino, a library to control     *
+ *  dimmers.                                                                  *
+ *                                                                            *
+ *  Copyright (C) 2018-2023  Fabiano Riccardi                                 *
+ *                                                                            *
+ *  Dimmable Light for Arduino is free software; you can redistribute         *
+ *  it and/or modify it under the terms of the GNU Lesser General Public      *
+ *  License as published by the Free Software Foundation; either              *
+ *  version 2.1 of the License, or (at your option) any later version.        *
+ *                                                                            *
+ *  This library is distributed in the hope that it will be useful,           *
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU          *
+ *  Lesser General Public License for more details.                           *
+ *                                                                            *
+ *  You should have received a copy of the GNU Lesser General Public License  *
+ *  along with this library; if not, see <http://www.gnu.org/licenses/>.      *
+ ******************************************************************************/
 
 #if defined(ARDUINO_ARCH_RP2040) && !defined(ARDUINO_ARCH_MBED)