diff --git a/pkgs/by-name/sv/svdtools/package.nix b/pkgs/by-name/sv/svdtools/package.nix
index 909a54ae12fd..73d04f6f8f31 100644
--- a/pkgs/by-name/sv/svdtools/package.nix
+++ b/pkgs/by-name/sv/svdtools/package.nix
@@ -6,14 +6,14 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "svdtools";
-  version = "0.3.20";
+  version = "0.3.21";
 
   src = fetchCrate {
     inherit version pname;
-    hash = "sha256-Sh3VnitkR72009kcD9u42UrDB1FKbHYllHGzM07eUTU=";
+    hash = "sha256-0ciEhtCJEerzyAcB/3xXnaStXBTi5SWcMplGlft9eeY=";
   };
 
-  cargoHash = "sha256-9QiDbJMWf4OWEVOVrz4uiyjmLHNhZg0VbM1/VKTjO9M=";
+  cargoHash = "sha256-+YBFjsPY3w+zjLtIB9GQXkuGy1ZHNT86clsQYiXeTJU=";
 
   meta = with lib; {
     description = "Tools to handle vendor-supplied, often buggy SVD files";