diff --git a/gram_core b/gram_core
index bf5b153..d10f0d4 160000
--- a/gram_core
+++ b/gram_core
@@ -1 +1 @@
-Subproject commit bf5b153001defd150d4dcc17b9baf06a3769adf0
+Subproject commit d10f0d4815d70804ea38686346671d230b7ab84c