diff --git a/.hgtags b/.hgtags
index 80f05e4..d74757f 100644
--- a/.hgtags
+++ b/.hgtags
@@ -1,2 +1,3 @@
 374b15b01724c4b1428c975b2b7d6a6e9a1940a5 v0.5.1
 d28c311da01445044c86d6ec107057a4553e2ce7 v0.5.1
+d4d6fd6ef24ebf23e436caf04799558381a302ee v0.5.1