diff --git a/.hgtags b/.hgtags
index 7d5390683..10cf016fd 100644
--- a/.hgtags
+++ b/.hgtags
@@ -45,3 +45,4 @@ e5e1746a197f0398356a43fbe2eebac9690f795d 2.1.0
 5864412c6f3c903384243bd315639d101d7ebc67 2.1.2
 12a05d59249f80276e25fd8b96e8e545b1332b7a 2.1.3
 1522710369337d96bf9568569d5f0ca9b38a74e0 2.2.0
+3da8cec6c5326ed27c144c9b6d7a64a648370005 2.2.1