diff --git a/src/main/stone b/src/main/stone
index c26b11df5..f91238c75 160000
--- a/src/main/stone
+++ b/src/main/stone
@@ -1 +1 @@
-Subproject commit c26b11df5170dcc03a86046b162c284ed24f7487
+Subproject commit f91238c7508770245030a449d86bd698d30ebfc3