diff --git a/machines/lisa/default.nix b/machines/lisa/default.nix
index 3558cad..8a63c7d 100644
--- a/machines/lisa/default.nix
+++ b/machines/lisa/default.nix
@@ -65,7 +65,7 @@
   services.tailscale.enable = true;
 
 
-  nix.maxJobs = lib.mkDefault 6;
+  nix.settings.max-jobs = lib.mkDefault 6;
 
   services.fail2ban.enable = true;
 
diff --git a/modules/nix/default.nix b/modules/nix/default.nix
index 271a777..06d1c44 100644
--- a/modules/nix/default.nix
+++ b/modules/nix/default.nix
@@ -21,13 +21,16 @@ with lib;
           "nixpkgs=${inputs.nixpkgs}"
           "nixos=${inputs.nixpkgs}"
         ];
-        binaryCaches = [
-          "https://cache.nixos.org"
-          "https://bin.julienmalka.me"
-        ];
-        binaryCachePublicKeys = [
-          "bin.julienmalka.me:RfXA+kPZt3SsMHGib5fY5mxJQLijfXzPbHjHD52ijyI="
-        ];
+        settings =
+          {
+            substituters = [
+              "https://cache.nixos.org"
+              "https://bin.julienmalka.me"
+            ];
+            trusted-public-keys = [
+              "bin.julienmalka.me:RfXA+kPZt3SsMHGib5fY5mxJQLijfXzPbHjHD52ijyI="
+            ];
+          };
 
       };