diff --git a/gram_core b/gram_core
index f18ce6dd..0db711d9 160000
--- a/gram_core
+++ b/gram_core
@@ -1 +1 @@
-Subproject commit f18ce6dd6da2bb54a375bbb3ab46f638af8a6e51
+Subproject commit 0db711d96a3f479b0b5970b1cf26b9a6be3e2404