diff --git a/pkgs/by-name/wi/wit-bindgen/package.nix b/pkgs/by-name/wi/wit-bindgen/package.nix
index df04aee00ea0..c324d192ccac 100644
--- a/pkgs/by-name/wi/wit-bindgen/package.nix
+++ b/pkgs/by-name/wi/wit-bindgen/package.nix
@@ -5,16 +5,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "wit-bindgen";
-  version = "0.28.0";
+  version = "0.29.0";
 
   src = fetchFromGitHub {
     owner = "bytecodealliance";
     repo = "wit-bindgen";
     rev = "v${version}";
-    hash = "sha256-WE+a0y97aPWEUHZT/LRjZ/WRZP7QxF4DXVjJVRjuJFU=";
+    hash = "sha256-mn51ussusBZGfgAj1JP1hjNsblXXGAt7W6D10yKTuZ8=";
   };
 
-  cargoHash = "sha256-Z6dBlYT4aYh92LZGH/+NAkkf80KZtId1emVaeOfpEjM=";
+  cargoHash = "sha256-JSsneDsbqs4DT0oMvucPVg/Jpf10xk3TWi0pDS1oOzQ=";
 
   # Some tests fail because they need network access to install the `wasm32-unknown-unknown` target.
   # However, GitHub Actions ensures a proper build.