diff --git a/.hgtags b/.hgtags
index f937943d28..8432908569 100644
--- a/.hgtags
+++ b/.hgtags
@@ -12,3 +12,4 @@ c9c039741d11671b752e24c14333f038246b771e 5.6.0
 9a9719de8bbf8a8d407b5b65a5230af59f6cd6f1 5.8.0
 168fec4cbfe60387daffbafc8eeea744c8157365 6.0.0
 c89c9a77e0faf8e6bd88b675764298e30025608d 6.2.0
+05157748568608904cd96fefc8d69eb5a47a4d45 6.4.0