diff --git a/contracts/lib/tnt-core b/contracts/lib/tnt-core
index fad7030..c1fa9c7 160000
--- a/contracts/lib/tnt-core
+++ b/contracts/lib/tnt-core
@@ -1 +1 @@
-Subproject commit fad7030fe53ea5d4a7576316880f5416fe656ee9
+Subproject commit c1fa9c7c3c5891aab9bd25002a434d93c54942cd