diff --git a/.hgtags b/.hgtags
index 7a4c073587..472620c3d9 100644
--- a/.hgtags
+++ b/.hgtags
@@ -2,3 +2,4 @@
 eb26aca05c57b21b5f7ace57a2e601a37871aced 1.4.0
 dc78f8d60898a66543a2fce81f601f1972b138f4 1.6.0
 3a3032d7e1b0a13e185941b061094f2f03b26347 1.8.0
+8db6249a75f343f92d878b4cb90a7f844ba9c4ba 1.8.1