diff --git a/FV3 b/FV3
index 5ff7846738..4d78e2b199 160000
--- a/FV3
+++ b/FV3
@@ -1 +1 @@
-Subproject commit 5ff784673891ca10dca3676d476e29c2dfdb0c9c
+Subproject commit 4d78e2b19981d3a1013e8ed4005d2aa614d95a92