diff --git a/.hgtags b/.hgtags
index 6f87491e..2868e225 100644
--- a/.hgtags
+++ b/.hgtags
@@ -15,3 +15,4 @@ d411e7fdee9e03036adb652f8d9f4c45a420bdd5 1.6
 784b45adb0fe8bdd707510f59ed18309087e5c21 1.7
 0f04ef991fbc1dadbc590ab7fb229d4f3d6357bc 1.7.1
 0a18a14d169f156f8e2daca35aa86d5a6dd9b1ae 1.8.0
+dda6319de785dc2d225d818349aba56fc48d47f6 1.9.0