diff --git a/.hgtags-top-repo b/.hgtags-top-repo
index b370baabdcc31b192837dd9fa137471831a0795c..e60713ac318c868b0b3f2c1bdf987ee0e9129e3f 100644
--- a/.hgtags-top-repo
+++ b/.hgtags-top-repo
@@ -257,3 +257,4 @@ ab55a18a95e1990a588929d5d29db3eb9985fea0 jdk9-b11
 59f6350295f9681fe5956d8bc889bf341914c6cb jdk9-b12
 5800456add07e1a68170a229fb5e27376f8875e5 jdk9-b13
 4e3aa9723e9972623e3dafc321b368e7db7e9b3b jdk9-b14
+b114474fb25af4e73cb7219f7c04bd8994da03a5 jdk9-b15
diff --git a/hotspot/.hgtags b/hotspot/.hgtags
index 008980122172ab5757564ba9cae93b2669f59268..ab6aa356e85d026b5470b0637ab5619de65142e9 100644
--- a/hotspot/.hgtags
+++ b/hotspot/.hgtags
@@ -417,3 +417,4 @@ ebc44d040cd149d2120d69fe183a3dae7840f4b4 jdk9-b10
 1c383bb39e2849ca62cb763f4e182a29b421d60a jdk9-b12
 456ad9c99133803d4e1433124c85a6fd141b9ac9 jdk9-b13
 bd333491bb6c012d7b606939406d0fa9a5ac7ffd jdk9-b14
+170f6d733d7aec062f743a6b8c1cce940a7a984a jdk9-b15