diff --git a/Changes.rst b/Changes.rst
index 74b7392..0ffeaa1 100644
--- a/Changes.rst
+++ b/Changes.rst
@@ -1,3 +1,15 @@
+Changes for v2.2.1 (2016-08-30)
+===============================
+
+-  Avoid using python-future; it has subdependencies that limit
+   compatibility (#34)
+-  Make test suite pass on 32-bit platforms (#30)
+-  Timing attack resistance fix: don't reveal string length to attacker.
+   Thanks to Eeo Jun (#28).
+-  Support algorithm, digits, period parameters in provisioning\_uri.
+   Thanks to Dionisio E Alonso (#33).
+-  Minor style and packaging infrastructure fixes.
+
 Changes for v2.2.0 (2016-08-30)
 ===============================