diff --git a/.hgtags b/.hgtags
index 8f92581..e701f6f 100644
--- a/.hgtags
+++ b/.hgtags
@@ -260,3 +260,4 @@
 8666a9611eb8ba711b001bf8d942282e3e2d8e3d jdk9-b15
 7d67ebd3e35c3c36ad2caee482a84f8310d2f838 jdk9-b16
 b64f8d5b97faa29e4d629bf4e56ebe0e26c40ecc jdk9-b17
+fd8da51c5df4546995c360fc49f0b985cbf8fbd3 jdk9-b18