diff --git a/docs/en/COPYRIGHT.rst b/docs/en/COPYRIGHT.rst
index 2891e13f5..3ff5e1c7d 100644
--- a/docs/en/COPYRIGHT.rst
+++ b/docs/en/COPYRIGHT.rst
@@ -51,6 +51,8 @@ These third party libraries can be included into the application (firmware) prod
 
 * `SPIFFS`_ library, Copyright (c) 2013-2017 Peter Andersson, is licensed under MIT license.
 
+* `TinyCBOR`_ library, Copyright (c) 2017 Intel Corporation, is licensed under MIT License.
+
 * :component_file:`SD/MMC driver <sdmmc/sdmmc_cmd.c>` is derived from `OpenBSD SD/MMC driver`_, Copyright (c) 2006 Uwe Stuehler, and is licensed under BSD license.
 
 * :component:`Asio <asio>`, Copyright (c) 2003-2018 Christopher M. Kohlhoff is licensed under the Boost Software License.
@@ -164,3 +166,4 @@ Copyright (C) 2011, ChaN, all right reserved.
 .. _mqtt: https://github.com/espressif/esp-mqtt
 .. _zephyr: https://github.com/zephyrproject-rtos/zephyr
 .. _mynewt-nimble: https://github.com/apache/mynewt-nimble
+.. _TinyCBOR: https://github.com/intel/tinycbor