diff --git a/port/stm32-l053r8-em9304/port.c b/port/stm32-l053r8-em9304/port.c
index 8945d6077..5685bf769 100644
--- a/port/stm32-l053r8-em9304/port.c
+++ b/port/stm32-l053r8-em9304/port.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2014 BlueKitchen GmbH
+ * Copyright (C) 2017 BlueKitchen GmbH
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
diff --git a/port/stm32-l053r8-em9304/port.h b/port/stm32-l053r8-em9304/port.h
index b3c539780..8afd0656e 100644
--- a/port/stm32-l053r8-em9304/port.h
+++ b/port/stm32-l053r8-em9304/port.h
@@ -1,6 +1,6 @@
 
 /*
- * Copyright (C) 2014 BlueKitchen GmbH
+ * Copyright (C) 2017 BlueKitchen GmbH
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions