diff --git a/.gitmodules b/.gitmodules
index ab72b60a64..9fb6937c50 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,7 +1,9 @@
 [submodule "FV3"]
   path = FV3
-  url = https://github.com/NOAA-EMC/fv3atm
-  branch = develop
+  url = https://github.com/WenMeng-NOAA/fv3atm
+  branch = upp_oct
+#  url = https://github.com/NOAA-EMC/fv3atm
+#  branch = develop
 [submodule "WW3"]
   path = WW3
   url = https://github.com/NOAA-EMC/WW3
diff --git a/FV3 b/FV3
index 99091f9742..0147f01859 160000
--- a/FV3
+++ b/FV3
@@ -1 +1 @@
-Subproject commit 99091f9742670bdebd84bd13f17b9115457d64dd
+Subproject commit 0147f018591decd6337ab1593450395469db760b
diff --git a/tests/tests/rap_clm_lake_debug b/tests/tests/rap_clm_lake_debug
index 1731c0c928..cc80d2fec5 100644
--- a/tests/tests/rap_clm_lake_debug
+++ b/tests/tests/rap_clm_lake_debug
@@ -23,3 +23,4 @@ export CCPP_SUITE=FV3_RAP_clm_lake
 export LKM=1
 export IOPT_LAKE=2
 export FRAC_ICE=.true.
+export WRITE_DOPOST=.false.