diff --git a/contracts/lib/tnt-core b/contracts/lib/tnt-core
index 07f3925..df6d5d6 160000
--- a/contracts/lib/tnt-core
+++ b/contracts/lib/tnt-core
@@ -1 +1 @@
-Subproject commit 07f3925e3d2197dd78a73104255ec896a6a074ca
+Subproject commit df6d5d6da3c82217405c408d3c0b11369bb3e5c2