diff --git a/.gitmodules b/.gitmodules
index 4d629cec9..4f75ada3d 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,4 @@
 [submodule "Submodules/PelePhysics"]
 	path = Submodules/PelePhysics
-	url = https://github.com/AMReX-Combustion/PelePhysics.git
\ No newline at end of file
+	url = https://github.com/AMReX-Combustion/PelePhysics.git
+	shallow = true