diff --git a/.hgtags b/.hgtags
index c437c3f34c..1e7158baa2 100644
--- a/.hgtags
+++ b/.hgtags
@@ -1,2 +1,3 @@
 c38b5ec7979d15bd5ddfb147457ec6b9b31c1aee 3.6.0
 15710360787a14c6ac0835479435e66622b50d99 3.8.0
+53d61e272517f22e7d2c66f546c00a7cf26bf8ae 4.0.0