diff --git a/docker.nix b/docker.nix
index 4b2cbc6..b1b6879 100644
--- a/docker.nix
+++ b/docker.nix
@@ -1,10 +1,8 @@
 { system ? builtins.currentSystem }:
 
 let
-  pkgs = import <nixpkgs> { inherit system; };
-
+  pkgs = import (import ./nix/sources.nix).nixpkgs { inherit system; };
   callPackage = pkgs.lib.callPackageWith pkgs;
-
   site = callPackage ./site.nix { };
 
   dockerImage = pkg: