diff --git a/flake.lock b/flake.lock
index ad5fb3a..5b81ed1 100644
--- a/flake.lock
+++ b/flake.lock
@@ -12,16 +12,16 @@
         "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1736353000,
-        "narHash": "sha256-PzglFIpNjoFLR5u0NO2+vrI2LACT9ZCRXk4zqYwEv+M=",
+        "lastModified": 1736394512,
+        "narHash": "sha256-dIrCD0rLXlW1XsNiF50vTeHi1l4xHYh0m+aCdHNcMfU=",
         "owner": "cything",
         "repo": "attic",
-        "rev": "cdb032600405c3db0ef76ea837ab34afdc97c3e3",
+        "rev": "e91261dc9a22d267700ab9095155f5581ac3b06c",
         "type": "github"
       },
       "original": {
         "owner": "cything",
-        "ref": "configurable-concurrency",
+        "ref": "compression",
         "repo": "attic",
         "type": "github"
       }
@@ -210,11 +210,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1736204492,
-        "narHash": "sha256-CoBPRgkUex9Iz6qGSzi/BFVUQjndB0PmME2B6eEyeCs=",
+        "lastModified": 1736366465,
+        "narHash": "sha256-Fo68EF6p/N9GJyHiAUbXtiE7IJlb3IMjK86LuxFMsRU=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "20665c6efa83d71020c8730f26706258ba5c6b2a",
+        "rev": "7e00856596891850ba5ad4c5ecd2ed74468c08c5",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 5d46947..5dab1b9 100644
--- a/flake.nix
+++ b/flake.nix
@@ -24,7 +24,7 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
     attic = {
-      url = "github:cything/attic/configurable-concurrency";
+      url = "github:cything/attic/compression";
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
@@ -35,9 +35,13 @@
   nixConfig = {
     extra-substituters = [
       "https://cache.cything.io/central"
+      "https://cache.cything.io/infra-ci"
+      "https://cache.cything.io/attic"
     ];
     extra-trusted-public-keys = [
       "central:uWhjva6m6dhC2hqNisjn2hXGvdGBs19vPkA1dPEuwFg="
+      "infra-ci:xG5f5tddUBcvToYjlpHD5OY/puYQkKmgKeIQCshNs38="
+      "attic:HL3hVpqXxwcF7Q1R+IvU2i0+YxIjQA2xxKM5EJMXLLs="
     ];
     builders-use-substitutes = true;
   };
@@ -137,12 +141,10 @@
             modules = [
               {
                 nixpkgs = { inherit pkgs; };
-                disabledModules = [ "services/networking/atticd.nix" ];
               }
               ./hosts/chunk
               inputs.sops-nix.nixosModules.sops
               ./modules
-              inputs.attic.nixosModules.atticd
             ];
           };