diff --git a/flake.nix b/flake.nix
index e1e6b5b..9dc44b2 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,14 +2,15 @@
   description = "nix builder for ci";
 
   inputs.nixpkgs.url = "github:NixOS/nixpkgs";
+  inputs.attic.url = "github:zhaofengli/attic";
 
-  outputs = { self, nixpkgs }: let
+  outputs = { self, nixpkgs, attic }: let
     pkgs = import nixpkgs { system = "x86_64-linux"; };
   in {
     packages.x86_64-linux.default = pkgs.dockerTools.buildImage {
       name = "nix-builder";
       tag = "latest";
-      copyToRoot = with pkgs; [coreutils cacert nix curl];
+      copyToRoot = with pkgs; [coreutils cacert nix git git-lfs bash] ++ [attic.packages."x86_64-linux".default];
       
       runAsRoot = ''
         #!${pkgs.runtimeShell}