diff --git a/docs/history.rst b/docs/history.rst
index f53584e..a4a3cd4 100644
--- a/docs/history.rst
+++ b/docs/history.rst
@@ -5,6 +5,7 @@ Version History
 - Add :func:`sprockets.mixins.mediatype.content.install`.
 - Add :func:`sprockets.mixins.mediatype.content.get_settings`.
 - Deprecate :meth:`sprockets.mixins.mediatype.content.ContentSettings.from_application`.
+- Update to ietfparse 1.4.
 
 `2.1.0`_ (16 Mar 2016)
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