diff --git a/.hgtags b/.hgtags
index 0da7b7f9cc2..827bfddd35e 100644
--- a/.hgtags
+++ b/.hgtags
@@ -424,3 +424,4 @@ d9f6bc6ba599d0487dc18b2fbdb6c34eedf6f958 jdk-9+177
 bc9df7dd63ec76f50fafeb4acc44465044662f0a jdk-9+178
 e2b70be325bd10dae4c06f74c46d70d480854916 jdk-9+179
 5b16a1c3ccffff2a82c88bb7ea894c4ff1c9ebde jdk-9+180
+3cc80be736f24704e505ad8ddaa598dec3fa2ed3 jdk-9+181