diff --git a/.hgtags b/.hgtags
index 1de9c6758f..a9317e7ddb 100644
--- a/.hgtags
+++ b/.hgtags
@@ -9,3 +9,4 @@ cb829d41fa1ec4e3c8c3135120539fb76533510e 5.6.0
 e801e613b26aca5c8feddb0e0fcd0d3092dd90f7 5.8.0
 410cee9fabf8c97f0a8dbee25c3c0a057701b9c5 6.0.0
 6926d75e74a71a091ac4ff8dd6e4307482af69a2 6.2.0
+f119bb72beb3bc7c8cba100dbb6a67b33d5174d5 6.4.0