diff --git a/.gitmodules b/.gitmodules
index afe6f27dd..32460fab1 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/climbfuji/ccpp-physics
+	branch = bugfix_thompson_pass_correct_timestep
diff --git a/ccpp/physics b/ccpp/physics
index f8e883632..70ba6969f 160000
--- a/ccpp/physics
+++ b/ccpp/physics
@@ -1 +1 @@
-Subproject commit f8e883632dcdd3c1aaec8b90adb72b3f6aff4b9d
+Subproject commit 70ba6969fa542b646cff9f31033a6254b4ed75bd