diff --git a/Cargo.lock b/Cargo.lock
index 8072300..e1124a9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -269,9 +269,9 @@ checksum = "49f1f14873335454500d59611f1cf4a4b0f786f9ac11f4312a78e4cf2566695b"
 
 [[package]]
 name = "libc"
-version = "0.2.159"
+version = "0.2.161"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "561d97a539a36e26a9a5fad1ea11a3039a67714694aaa379433e580854bc3dc5"
+checksum = "8e9489c2807c139ffd9c1794f4af0ebe86a828db53ecdc7fea2111d0fed085d1"
 
 [[package]]
 name = "lock_api"
@@ -452,9 +452,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.79"
+version = "2.0.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89132cd0bf050864e1d38dc3bbc07a0eb8e7530af26344d3d2bbbef83499f590"
+checksum = "83540f837a8afc019423a8edb95b52a8effe46957ee402287f4292fae35be021"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index 57615d6..9c1492b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "minesweeper-nojs"
-version = "1.4.5"
+version = "1.4.8"
 edition = "2021"
 
 [profile.release]
diff --git a/flake.lock b/flake.lock
index 288f53b..8dd74fd 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,33 +1,12 @@
 {
   "nodes": {
-    "fenix": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ],
-        "rust-analyzer-src": "rust-analyzer-src"
-      },
-      "locked": {
-        "lastModified": 1728973961,
-        "narHash": "sha256-Jkqaw9O7WXTf5SHrK7xr9HpVU/mEPVg0Sp6s3AENC90=",
-        "owner": "nix-community",
-        "repo": "fenix",
-        "rev": "d6a9ff4d1e60c347a23bc96ccdb058d37a810541",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "fenix",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1728863046,
-        "narHash": "sha256-DZBO2465PL5V89e8hFSJewyH4QbCPpW3ssws7ckT/0A=",
+        "lastModified": 1729265718,
+        "narHash": "sha256-4HQI+6LsO3kpWTYuVGIzhJs1cetFcwT7quWCk/6rqeo=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "d4f247e89f6e10120f911e2e2d2254a050d0f732",
+        "rev": "ccc0c2126893dd20963580b6478d1a10a4512185",
         "type": "github"
       },
       "original": {
@@ -39,28 +18,10 @@
     },
     "root": {
       "inputs": {
-        "fenix": "fenix",
         "nixpkgs": "nixpkgs",
         "treefmt-nix": "treefmt-nix"
       }
     },
-    "rust-analyzer-src": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1728921748,
-        "narHash": "sha256-BOCZ5osPOMh2BPHnkK4sVdTGj7sn47rBn1nxjrzWe5U=",
-        "owner": "rust-lang",
-        "repo": "rust-analyzer",
-        "rev": "0319586ef2a2636f6d6b891690b7ebebf4337c85",
-        "type": "github"
-      },
-      "original": {
-        "owner": "rust-lang",
-        "ref": "nightly",
-        "repo": "rust-analyzer",
-        "type": "github"
-      }
-    },
     "treefmt-nix": {
       "inputs": {
         "nixpkgs": [
@@ -68,11 +29,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1729077719,
-        "narHash": "sha256-zayHqZO9gA1U85c4CPvVSnLV8/cBgc2yVrSKWaKeBUs=",
+        "lastModified": 1729242555,
+        "narHash": "sha256-6jWSWxv2crIXmYSEb3LEVsFkCkyVHNllk61X4uhqfCs=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "5307ba60125bb024d7e52d71d582eafd511f3fee",
+        "rev": "d986489c1c757f6921a48c1439f19bfb9b8ecab5",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 1ea70c8..9295b21 100644
--- a/flake.nix
+++ b/flake.nix
@@ -8,11 +8,6 @@
       url = "github:numtide/treefmt-nix";
       inputs.nixpkgs.follows = "nixpkgs";
     };
-
-    fenix = {
-      url = "github:nix-community/fenix";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
   };
 
   outputs =
@@ -20,7 +15,6 @@
       self,
       nixpkgs,
       treefmt-nix,
-      fenix,
     }:
     let
       supportedSystems = [
@@ -37,16 +31,10 @@
             let
               pkgs = import nixpkgs {
                 inherit system;
-                overlays = [ fenix.overlays.default ];
-              };
-              fenix' = (import fenix { inherit system pkgs; });
-              toolchain = fenix'.fromToolchainFile {
-                file = ./rust-toolchain.toml;
-                sha256 = "sha256-VZZnlyP69+Y3crrLHQyJirqlHrTtGTsyiSnZB8jEvVo=";
               };
             in
             {
-              inherit pkgs toolchain;
+              inherit pkgs;
             }
           )
         );
@@ -56,24 +44,21 @@
         { pkgs, ... }: (treefmt-nix.lib.evalModule pkgs ./treefmt.nix).config.build.wrapper
       );
       devShells = forEachSupportedSystem (
-        { pkgs, toolchain }:
+        { pkgs }:
         {
           default = pkgs.mkShell {
-            nativeBuildInputs = [ toolchain ];
-            buildInputs = [ toolchain ];
+            # nativeBuildInputs = [ pkgs.rustPlatform ];
+            # buildInputs = [ pkgs.rustPlatform ];
           };
         }
       );
       packages = forEachSupportedSystem (
-        { pkgs, toolchain }:
+        { pkgs }:
         {
           default = (
             let
               manifest = (pkgs.lib.importTOML ./Cargo.toml).package;
-              rustPlatform = pkgs.makeRustPlatform {
-                cargo = toolchain;
-                rustc = toolchain;
-              };
+              rustPlatform = pkgs.rustPlatform;
             in
             rustPlatform.buildRustPackage {
               pname = manifest.name;