diff --git a/.hgtags b/.hgtags
index 548b074f3..79fe2cc33 100644
--- a/.hgtags
+++ b/.hgtags
@@ -301,3 +301,4 @@ e7bdb8edc1bab2bc352a9fb6ce765c46575c35bf release-0.8.50
 67dd7533b99c8945b5b8b5b393504d4e003a1c50 release-0.8.52
 010468d890dbac33a4cae6dfb2017db70721b2fe release-0.8.53
 62b599022a2fa625b526c2ad1711dc6db7d66786 release-0.9.0
+71281dd73b17a0ead5535d531afaee098da723cb release-0.9.1