Update date in copyright line
diff --git a/include/mbedtls/entropy_poll.h b/include/mbedtls/entropy_poll.h
index 8ee1e1a..f285780 100644
--- a/include/mbedtls/entropy_poll.h
+++ b/include/mbedtls/entropy_poll.h
@@ -3,7 +3,7 @@
  *
  * \brief Platform-specific and custom entropy polling functions
  *
- *  Copyright (C) 2006-2011, ARM Limited, All Rights Reserved
+ *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
  *
  *  This file is part of mbed TLS (https://tls.mbed.org)
  *