diff --git a/.hgtags b/.hgtags
index a455df05a0..f5bc846cd5 100644
--- a/.hgtags
+++ b/.hgtags
@@ -1,3 +1,4 @@
 048f3939e4fe68df605f29805d421f0e4029e1e3 5.8.0
 e11442b5963bc719317414861dd81c13c7b941ce 6.0.0
 7799a1ee14e380bf2b1fb3dbf20136af200c5d4b 6.2.0
+4af6d96d6d6297747215c963869820830853c055 6.4.0