diff --git a/source/portable/NetworkInterface/RX/NetworkInterface.c b/source/portable/NetworkInterface/RX/NetworkInterface.c
index 1c3874173..cd23fef37 100644
--- a/source/portable/NetworkInterface/RX/NetworkInterface.c
+++ b/source/portable/NetworkInterface/RX/NetworkInterface.c
@@ -12,7 +12,7 @@
 * Renesas reserves the right, without notice, to make changes to this software and to discontinue the availability of
 * this software. By using this software, you agree to the additional terms and conditions found by accessing the
 * following link:
-* http://www.renesas.com/disclaimer
+* https://www.renesas.com/disclaimer
 *
 * Copyright (C) 2020 Renesas Electronics Corporation. All rights reserved.
 ***********************************************************************************************************************/
diff --git a/source/portable/NetworkInterface/RX/ether_callback.c b/source/portable/NetworkInterface/RX/ether_callback.c
index dc54e0e31..eb08836af 100644
--- a/source/portable/NetworkInterface/RX/ether_callback.c
+++ b/source/portable/NetworkInterface/RX/ether_callback.c
@@ -12,7 +12,7 @@
 * Renesas reserves the right, without notice, to make changes to this software and to discontinue the availability of
 * this software. By using this software, you agree to the additional terms and conditions found by accessing the
 * following link:
-* http://www.renesas.com/disclaimer
+* https://www.renesas.com/disclaimer
 *
 * Copyright (C) 2015 Renesas Electronics Corporation. All rights reserved.
 ***********************************************************************************************************************/