diff --git a/.hgtags b/.hgtags
index a3922c2a58..26ae570823 100644
--- a/.hgtags
+++ b/.hgtags
@@ -1 +1,2 @@
 a330864aa841acb0bcea770d444cb5001a210dfb 6.2.0
+0168658d3b4e1a18e041af122bab91c47b91996e 6.4.0