diff --git a/.hgtags b/.hgtags
index a266c0b2a..0f33125c4 100644
--- a/.hgtags
+++ b/.hgtags
@@ -102,3 +102,4 @@ e60fe4cf1d4ea3c34be8c49047c712c6d46c1727 release-0.3.40
 7cbef16c71a1f43a07f8141f02e0135c775f0f5b release-0.3.48
 4c8cd5ae5cc100add5c08c252d991b82b1838c6b release-0.3.49
 400711951595aef7cd2ef865b84b31df52b15782 release-0.3.50
+649c9063d0fda23620eaeaf0f6393be0a672ebe7 release-0.3.51