diff --git a/.gitmodules b/.gitmodules
index 7773426..d1b5e8b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,8 @@
 [submodule "nixpkgs"]
 	path = nixpkgs
 	url = https://github.com/NixOS/nixpkgs.git
+	branch = release-16.03
 [submodule "nixos-template-base"]
 	path = nixos-template-base
 	url = ssh://git@gogs.prunetwork.fr:10022/nixos-config/nixos-template-base.git
+	branch = master