diff --git a/.hgtags b/.hgtags
index 74caecd3098..85a125d7ec4 100644
--- a/.hgtags
+++ b/.hgtags
@@ -363,3 +363,4 @@ c84d0cce090e161d736de69e941830adf8c2f87a jdk-9+114
 7c04fcb12bd4a31570a238e663fa846dfa5ec3b8 jdk-9+118
 caf97b37ebec84288c112d21d3a60cb628cba1e8 jdk-9+119
 9330543436402b8f3bd070524846a464d8143557 jdk-9+120
+18e5cdecb37a2f03ba74f6c8f022858bcbaacf56 jdk-9+121