diff --git a/.hgtags b/.hgtags
index 5b5080c..87680a7 100644
--- a/.hgtags
+++ b/.hgtags
@@ -1,3 +1,4 @@
+643b5f18c2656fe91b69fea85b07b98d5fad394d jdk-9+171
 898cbe31fbdae2d25d141384fac746cc244a730c jdk-9+170
 c7efde2b60fc1ec04630be769d9ad60efb39c39c jdk-9+169
 8fd0a4569191f33c98ee90c2709174a342fefb0d jdk-9+167