diff --git a/applications/nix_cache/nix_cache.nix b/applications/nix_cache/nix_cache.nix
index 4dcfdae..aead693 100644
--- a/applications/nix_cache/nix_cache.nix
+++ b/applications/nix_cache/nix_cache.nix
@@ -15,7 +15,6 @@ https://docs.attic.rs/introduction.html
   lib,
   config,
   pkgs,
-  inputs,
   ...
 }:
 with lib; let
@@ -23,7 +22,6 @@ with lib; let
   cfg = config.services.skynet."${name}";
 in {
   imports = [
-    inputs.attic.nixosModules.atticd
   ];
 
   options.services.skynet."${name}" = {
@@ -53,7 +51,7 @@ in {
       enable = true;
 
       # Replace with absolute path to your credentials file
-      credentialsFile = "/etc/atticd.env";
+      environmentFile = "/etc/atticd.env";
 
       settings = {
         listen = "127.0.0.1:8080";
diff --git a/flake.nix b/flake.nix
index 3669f39..150054a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -27,7 +27,6 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
     colmena.url = "github:zhaofengli/colmena";
-    attic.url = "github:zhaofengli/attic";
 
     # we host our own
     simple-nixos-mailserver = {