diff --git a/.hgtags b/.hgtags
index 5a0ba75..a6fdb6e 100644
--- a/.hgtags
+++ b/.hgtags
@@ -28,3 +28,4 @@ b140f7a3216b820aa13f982e45ff42781d7a8f4a v0.8.2
 2e9969df06ddab8fa07999e91437dda28ec058ae v0.8.5
 3e41549dbc90f1d2ad246e4af72db9343021bc98 v0.8.6
 8e5c85fbcf02e61c9a2d12415f83d16f8afadba4 v0.9.0
+5218aee560879398288e009d8a426749bd172f40 v0.9.1