diff --git a/.gitmodules b/.gitmodules
index a54f243ae..6bb663df1 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,3 +10,7 @@
   path = ccpp/physics
   url = https://github.com/NCAR/ccpp-physics
   branch = main
+[submodule "upp"]
+  path = upp
+  url = https://github.com/NOAA-EMC/UPP
+  branch = develop
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 03ec1411a..ec9721ba6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -20,6 +20,8 @@ add_subdirectory(atmos_cubed_sphere)
 ### fv3atm
 ###############################################################################
 if(INLINE_POST)
+  set(BUILD_POSTEXEC OFF)
+  add_subdirectory(upp)
   set(POST_SRC io/inline_post.F90 io/post_nems_routines.F90 io/post_gfs.F90 io/post_regional.F90)
 else()
   set(POST_SRC io/inline_post_stub.F90)
diff --git a/upp b/upp
new file mode 160000
index 000000000..c939eae6b
--- /dev/null
+++ b/upp
@@ -0,0 +1 @@
+Subproject commit c939eae6bacb3c2a93753bba54b8646f32a0a7ab