diff --git a/.gitmodules b/.gitmodules
index 8a3a77983d..01366d6d69 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,7 +1,9 @@
 [submodule "FV3"]
 	path = FV3
-	url = https://github.com/NOAA-GSD/fv3atm
-	branch = gsd/develop
+	#url = https://github.com/NOAA-GSD/fv3atm
+	#branch = gsd/develop
+	url = https://github.com/climbfuji/fv3atm
+	branch = add_aux_output
 [submodule "NEMS"]
 	path = NEMS
 	url = https://github.com/NOAA-EMC/NEMS
diff --git a/FV3 b/FV3
index 537df51b95..e4d2ba87e6 160000
--- a/FV3
+++ b/FV3
@@ -1 +1 @@
-Subproject commit 537df51b9562a41bae95adbb48d7bc9ce251f4fe
+Subproject commit e4d2ba87e68574b8ec2ec424832cc927a6ea8bf3