diff --git a/pkgs/development/tools/rust/cargo-spellcheck/default.nix b/pkgs/development/tools/rust/cargo-spellcheck/default.nix
index f6312ee3f00d..aae0be337614 100644
--- a/pkgs/development/tools/rust/cargo-spellcheck/default.nix
+++ b/pkgs/development/tools/rust/cargo-spellcheck/default.nix
@@ -8,21 +8,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "cargo-spellcheck";
-  version = "0.13.2";
+  version = "0.14.0";
 
   src = fetchFromGitHub {
     owner = "drahnr";
     repo = pname;
     rev = "v${version}";
-    hash = "sha256-PgV+sjCf4O24v0i9P7RJIcn28OWMUcPSwy+P5n8RwS4=";
+    hash = "sha256-NrtPV2bd9BuA1nnniIcth85gJQmFGy9LHdajqmW8j4Q=";
   };
 
-  cargoHash = "sha256-6dhM+FzuLtKtRp2mpE9nlpT+0PBcgGqvBa9vqs6Rs7s=";
-
-  postPatch = ''
-    substituteInPlace src/lib.rs \
-      --replace "#![deny(dead_code)]" "#![warn(dead_code)]"
-  '';
+  cargoHash = "sha256-mxx4G77ldPfVorNa1LGTcA0Idwmrcl8S/ze+UUoLHhI=";
 
   nativeBuildInputs = [ rustPlatform.bindgenHook ];