diff --git a/.gitmodules b/.gitmodules
index a54f243ae..187c78e9e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -8,5 +8,7 @@
   branch = main
 [submodule "ccpp/physics"]
   path = ccpp/physics
-  url = https://github.com/NCAR/ccpp-physics
-  branch = main
+  #url = https://github.com/NCAR/ccpp-physics
+  #branch = main
+  url = https://github.com/DeniseWorthen/ccpp-physics
+  branch = feature/aero4
diff --git a/ccpp/physics b/ccpp/physics
index 7d7b3bcc4..5dd07ce5f 160000
--- a/ccpp/physics
+++ b/ccpp/physics
@@ -1 +1 @@
-Subproject commit 7d7b3bcc4b8009ef3491bd230b31bf5af5910bb5
+Subproject commit 5dd07ce5f127ca56549ec9e867689f3b3d992d3f