diff --git a/.hgtags b/.hgtags
index 64162d11ca..33aba726f1 100644
--- a/.hgtags
+++ b/.hgtags
@@ -1 +1,2 @@
 104c6a538cb716b5c27719d633c2d5aff8171646 3.8.0
+905096471c40bdbacfd13f42491991a9b27c21d7 4.0.0