diff --git a/.hgtags b/.hgtags
index 358d65c..e6617fe 100644
--- a/.hgtags
+++ b/.hgtags
@@ -8,3 +8,4 @@ da9f123633f9c28be6435ed7898139665d4c39d9 nmdc-log-service-1.0.2
 75a78f6a78f249a2cd8aa3d29f7e5e6319b4e03b libnmdc-r5
 4116422bb10229d887f9296970a166fa1ef8c5fd nmdc-log-service-1.0.3
 cb86f3a40115cc46f450c0c83fd9b9d3b740e820 nmdc-log-service-1.0.4
+cb86f3a40115cc46f450c0c83fd9b9d3b740e820 libnmdc-r6