diff --git a/flake.lock b/flake.lock
index 31117f6..b4b3b39 100644
--- a/flake.lock
+++ b/flake.lock
@@ -20,8 +20,12 @@
     },
     "ghostty": {
       "inputs": {
-        "nixpkgs-stable": "nixpkgs-stable",
-        "nixpkgs-unstable": "nixpkgs-unstable",
+        "nixpkgs-stable": [
+          "nixpkgs"
+        ],
+        "nixpkgs-unstable": [
+          "nixpkgs"
+        ],
         "zig": "zig"
       },
       "locked": {
@@ -74,38 +78,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-stable": {
-      "locked": {
-        "lastModified": 1733423277,
-        "narHash": "sha256-TxabjxEgkNbCGFRHgM/b9yZWlBj60gUOUnRT/wbVQR8=",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "e36963a147267afc055f7cf65225958633e536bf",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "ref": "release-24.11",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs-unstable": {
-      "locked": {
-        "lastModified": 1733229606,
-        "narHash": "sha256-FLYY5M0rpa5C2QAE3CKLYAM6TwbKicdRK6qNrSHlNrE=",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "566e53c2ad750c84f6d31f9ccb9d00f823165550",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
         "ghostty": "ghostty",
diff --git a/flake.nix b/flake.nix
index 9e7433d..6387411 100644
--- a/flake.nix
+++ b/flake.nix
@@ -9,7 +9,13 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
-    ghostty.url = "git+ssh://git@github.com/ghostty-org/ghostty";
+    ghostty = {
+      url = "git+ssh://git@github.com/ghostty-org/ghostty";
+
+      # NOTE: use cache, only needed if nixpkgs.url is unstable
+      inputs.nixpkgs-stable.follows = "nixpkgs";
+      inputs.nixpkgs-unstable.follows = "nixpkgs";
+    };
   };
 
   outputs = { self, nixpkgs, ... }@inputs: {