diff --git a/.hgtags b/.hgtags
index 0c30b7fd38..783651d232 100644
--- a/.hgtags
+++ b/.hgtags
@@ -5,3 +5,4 @@ b44aa993ce24453fdb2362187e201a9375bcaa09 1.6.0
 f76056df60f581f803c7a7e4cec81397e4bbbb9c 1.8.0
 354dfc672c4b3ee2609a4051f6d8d431dd087231 2.0.0
 0881ad5cb82f3f00ec1eea276fa100a957691982 2.2.0
+a4bea1ca2103ad0d5c5ab73d7c138f875f7d146e 2.2.1