diff --git a/lib/grey.ooo b/lib/grey.ooo
index 5ceb5aa..720b222 160000
--- a/lib/grey.ooo
+++ b/lib/grey.ooo
@@ -1 +1 @@
-Subproject commit 5ceb5aa6820075bb78ab22477bf85b2ffa23010b
+Subproject commit 720b2227e91b33518a0ad12011cb9235f9a23ee1