diff --git a/.hgtags b/.hgtags
index 3b7c44267f..56c20694da 100644
--- a/.hgtags
+++ b/.hgtags
@@ -1 +1,2 @@
 31281d580580b74a4605a8382f33dbf9906cb747 6.2.0
+e116e051465f2282acd1dcbe22b0eb8a47d41984 6.4.0