diff --git a/.hgtags b/.hgtags
index 9f69a0dc17..e85b8ce2fe 100644
--- a/.hgtags
+++ b/.hgtags
@@ -3,3 +3,4 @@ eb26aca05c57b21b5f7ace57a2e601a37871aced 1.4.0
 dc78f8d60898a66543a2fce81f601f1972b138f4 1.6.0
 3a3032d7e1b0a13e185941b061094f2f03b26347 1.8.0
 8e0a6416ad46e8917c90357418145a80ea5da2bd 2.0.0
+974320e593ed516aef45e56f5c62e171e5b31375 2.2.0