diff --git a/machines/compute01/satosa/module.nix b/machines/compute01/satosa/module.nix
index 65e590e..f9738da 100644
--- a/machines/compute01/satosa/module.nix
+++ b/machines/compute01/satosa/module.nix
@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ config, lib, pkgs, sources, ... }:
 
 let
   inherit (lib) mkDefault mkEnableOption mkIf mkOption types;
@@ -20,7 +20,7 @@ in {
 
     package = mkOption {
       type = types.package;
-      default = let pkgs = import <nixpkgs> { };
+      default = let pkgs = import sources.nixos-unstable { };
       in import ./package {
         inherit pkgs;
         inherit (pkgs) lib;