diff --git a/apache-formula b/apache-formula
index e1685ff..a6f1fb9 160000
--- a/apache-formula
+++ b/apache-formula
@@ -1 +1 @@
-Subproject commit e1685ffbeb687f19bb1a810918377dab12371b7e
+Subproject commit a6f1fb91d5f466593d3ec5e647c89b228d310c0d