diff --git a/.gitmodules b/.gitmodules
index c8a8ee7..f8da97a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,7 @@
 [submodule "SEAL"]
 	path = SEAL
 	url = https://github.com/microsoft/SEAL.git
+	branch = main
 [submodule "pybind11"]
 	path = pybind11
 	url = https://github.com/pybind/pybind11.git