diff --git a/.hgtags b/.hgtags
index 4fccc1f74a..b2df7ba54b 100644
--- a/.hgtags
+++ b/.hgtags
@@ -1 +1,2 @@
 4a7ebae7ab2c93f5350528554608816c627c6bb9 6.2.0
+f4dd7102de8112b5919c55f3884b6c77ad95eb3b 6.4.0