diff --git a/pkgs/by-name/wi/wit-bindgen/package.nix b/pkgs/by-name/wi/wit-bindgen/package.nix
index e0bd785ca488..1c797c7c16d0 100644
--- a/pkgs/by-name/wi/wit-bindgen/package.nix
+++ b/pkgs/by-name/wi/wit-bindgen/package.nix
@@ -6,17 +6,17 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "wit-bindgen";
-  version = "0.39.0";
+  version = "0.40.0";
 
   src = fetchFromGitHub {
     owner = "bytecodealliance";
     repo = "wit-bindgen";
     rev = "v${version}";
-    hash = "sha256-2hTSFz6S+sncqXY8FRzvy5iUt3HeLi3q3Ze1u+cZV1Y=";
+    hash = "sha256-TWs4fpUAsrDmIIM7ZaCEyGRd9siILn3d92loWwheZfI=";
   };
 
   useFetchCargoVendor = true;
-  cargoHash = "sha256-aEXcAgsf65dTVdCUAeu2YeI43jRkjFJK4DSwos3LRao=";
+  cargoHash = "sha256-RD60tyiMxWoKhEYVJ7HiwVfkf2oKerUP38PVmIr2tIk=";
 
   # Some tests fail because they need network access to install the `wasm32-unknown-unknown` target.
   # However, GitHub Actions ensures a proper build.