diff --git a/flake-modules/default.nix b/flake-modules/default.nix
index 7cf532e..6736a16 100644
--- a/flake-modules/default.nix
+++ b/flake-modules/default.nix
@@ -1,8 +1,4 @@
-{ lib, inputs, ... }:
-let
-  webnsupdate = ../module.nix;
-  cargoToml = lib.importTOML ../Cargo.toml;
-in
+{ inputs, ... }:
 {
   imports = [
     inputs.treefmt-nix.flakeModule
@@ -10,10 +6,14 @@ in
     ./tests.nix
   ];
 
-  flake.nixosModules = {
-    default = webnsupdate;
-    inherit webnsupdate;
-  };
+  flake.nixosModules =
+    let
+      webnsupdate = ../module.nix;
+    in
+    {
+      default = webnsupdate;
+      inherit webnsupdate;
+    };
 
   perSystem =
     { pkgs, ... }:
@@ -23,10 +23,7 @@ in
         projectRootFile = "flake.nix";
         programs = {
           nixfmt.enable = true;
-          rustfmt = {
-            enable = true;
-            inherit (cargoToml.package) edition; # respect the package's edition
-          };
+          rustfmt.enable = true;
           statix.enable = true;
           typos.enable = true;
         };
diff --git a/flake.lock b/flake.lock
index 2b6d1fa..a5a9d6c 100644
--- a/flake.lock
+++ b/flake.lock
@@ -37,11 +37,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1745794561,
-        "narHash": "sha256-T36rUZHUART00h3dW4sV5tv4MrXKT7aWjNfHiZz7OHg=",
+        "lastModified": 1745526057,
+        "narHash": "sha256-ITSpPDwvLBZBnPRS2bUcHY3gZSwis/uTe255QgMtTLA=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "5461b7fa65f3ca74cef60be837fd559a8918eaa0",
+        "rev": "f771eb401a46846c1aebd20552521b233dd7e18b",
         "type": "github"
       },
       "original": {