diff --git a/pkgs/development/tools/uniffi-bindgen/default.nix b/pkgs/development/tools/uniffi-bindgen/default.nix
index 4e9d738ca30a..818d86f09d23 100644
--- a/pkgs/development/tools/uniffi-bindgen/default.nix
+++ b/pkgs/development/tools/uniffi-bindgen/default.nix
@@ -10,14 +10,14 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "uniffi-bindgen";
-  version = "0.20.0";
+  version = "0.21.0";
 
   src = fetchCrate {
     inherit pname version;
-    sha256 = "sha256-E0OMMg9GuZCwPuJKzMpN0PNxZicGW1blD322Jl01qQE=";
+    sha256 = "sha256-yVpxyYaFkX1HuFi4xcj45rsMbMIcdTHs9zfGvtcFdH8=";
   };
 
-  cargoSha256 = "sha256-REY88irDm45JOBwdb79JVrIyfuOB6HcAgIzYO65O0uE=";
+  cargoSha256 = "sha256-qn27aRVdD+/EWmCSF2t+CdMhtOknDCVnG9uDa2Rwf0A=";
 
   nativeBuildInputs = [ makeWrapper ];