diff --git a/.hgtags b/.hgtags
index 25068199a..13825cdfa 100644
--- a/.hgtags
+++ b/.hgtags
@@ -362,3 +362,4 @@ cd84e467c72967b9f5fb4d96bfc708c93edeb634 release-1.3.15
 376a5e7694004048a9d073e4feb81bb54ee3ba91 release-1.5.4
 60e0409b9ec7ee194c6d8102f0656598cc4a6cfe release-1.5.5
 70c5cd3a61cb476c2afb3a61826e59c7cda0b7a7 release-1.5.6
+9ba2542d75bf62a3972278c63561fc2ef5ec573a release-1.5.7