diff --git a/NEWS b/NEWS
index a4e891c..671c762 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,10 @@
+New in version 2.2.1
+====================
+
+Security fixes
+--------------
+* Restrict authentication of NTP server/peer to specified key (CVE-2016-1567)
+
 New in version 2.2
 ==================