diff --git a/crates/ethcore/res/json_tests b/crates/ethcore/res/json_tests
index e431795bf..ff68495eb 160000
--- a/crates/ethcore/res/json_tests
+++ b/crates/ethcore/res/json_tests
@@ -1 +1 @@
-Subproject commit e431795bf750166671afc3516f5e0332af3318f1
+Subproject commit ff68495eb56c382b2ddcea4020259e106353b874