diff --git a/pkgs/development/tools/misc/dart-sass/default.nix b/pkgs/development/tools/misc/dart-sass/default.nix
index e3f37ca5ccdb..3d0a9855bf9f 100644
--- a/pkgs/development/tools/misc/dart-sass/default.nix
+++ b/pkgs/development/tools/misc/dart-sass/default.nix
@@ -15,17 +15,17 @@ let
 in
 buildDartApplication rec {
   pname = "dart-sass";
-  version = "1.63.3";
+  version = "1.64.1";
 
   src = fetchFromGitHub {
     owner = "sass";
     repo = pname;
     rev = version;
-    hash = "sha256-PBFBepG7b5M9LKSQOp7+mVhtwSLgQzUTu3i1055uNBk=";
+    hash = "sha256-JIw1I60Av5hUSRyqhc4nK5x9gHJcHTUIdYBTfQf8ob4=";
   };
 
   pubspecLockFile = ./pubspec.lock;
-  vendorHash = "sha256-ciJUjkItnwzKH6k8a5zxIbARQAEfg/GJEsKfSaygsXU=";
+  vendorHash = "sha256-kGeQIlNTHhlIEFH4MdWF5smc9lLg4YHx11bZS4BTPgI=";
 
   nativeBuildInputs = [
     buf