diff --git a/vendor/json.hpp b/vendor/json.hpp
index 0171d3b..9031964 160000
--- a/vendor/json.hpp
+++ b/vendor/json.hpp
@@ -1 +1 @@
-Subproject commit 0171d3baf73d8ed384331f8117a9fc07fedb9f28
+Subproject commit 9031964192ef6c41897d36d1aa525dd5ff270d0c