diff --git a/.hgtags b/.hgtags
index 42b76d60b..cdea1f022 100644
--- a/.hgtags
+++ b/.hgtags
@@ -137,3 +137,4 @@ e2ac5fa41bcba14adbbb722d45c083c30c07bb5c release-0.5.3
 6d1fcec2ea79101c756316c015f72e75f601a5ab release-0.5.6
 aed8a9de62456c4b360358bc112ccca32ce02e8d release-0.5.7
 7642f45af67d805452df2667486201c36efaff85 release-0.5.8
+779216610662c3a459935d506f66a9b16b9c9576 release-0.5.9