diff --git a/gram_core b/gram_core
index e454db0f..94a4aca6 160000
--- a/gram_core
+++ b/gram_core
@@ -1 +1 @@
-Subproject commit e454db0f760c7c395eabab6f62cc524d50f9d935
+Subproject commit 94a4aca6ff3b02f897f96f7a7629a3c72eda4513