diff --git a/expat/Changes b/expat/Changes
index 50c2711b..40ee5ff3 100644
--- a/expat/Changes
+++ b/expat/Changes
@@ -38,6 +38,8 @@ Release 2.2.1 ??????????
                       * 6a747c837c50114dfa413994e07c0ba477be4534
                     * Negative length (XML_Parse); commit
                       70db8d2538a10f4c022655d6895e4c3e78692e7f
+                  Change hash algorithm to William Ahern's version of SipHash
+                    to go further with fixing CVE-2012-0876.
 
         Bug fixes:
              #32  Fix sharing of hash salt across parsers;