diff --git a/gram_core b/gram_core
index 0ae6a40..fdaeaa1 160000
--- a/gram_core
+++ b/gram_core
@@ -1 +1 @@
-Subproject commit 0ae6a4043375a50a011efd212d54bb6c9feb7b23
+Subproject commit fdaeaa19e918d3046a3278feff9ffb1f52c56d39