doc/news.rst | 3 ++-

diff --git a/doc/news.rst b/doc/news.rst
index d2b6bbfce554bceda337e5dece12524b581e1b53ebe0b590a4c7be8cc4ff4263..1833275921bcbff15461cd1aad8eea7459b378874581b1f335d9df2bca1c128b 100644
--- a/doc/news.rst
+++ b/doc/news.rst
@@ -8,7 +8,8 @@ ---
 * :py:func:`pyderasn.decode_path_defby` is replaced with
   :py:class:`pyderasn.DecodePathDefBy`
 * Ability to turn colourized terminal output by calling
-  ``pprint(..., with_colours=True)``
+  ``pprint(..., with_colours=True)``. You will need
+  `termcolor package <https://pypi.python.org/pypi/termcolor>`__
 
 .. _release2.1: