diff --git a/pkgs/by-name/da/dart-sass/package.nix b/pkgs/by-name/da/dart-sass/package.nix
index 0db5d2922fdc..d8247bf18f97 100644
--- a/pkgs/by-name/da/dart-sass/package.nix
+++ b/pkgs/by-name/da/dart-sass/package.nix
@@ -22,13 +22,13 @@ let
 in
 buildDartApplication rec {
   pname = "dart-sass";
-  version = "1.86.0";
+  version = "1.86.3";
 
   src = fetchFromGitHub {
     owner = "sass";
     repo = "dart-sass";
     rev = version;
-    hash = "sha256-TYjw3ACeScP1bf12mKB5U3DxPspkCsupQADc0CFDKLw=";
+    hash = "sha256-HYuKSZLLL3Eg1FPrHK25H1GLuyC/xL9i0DM9eQ6Ry9U=";
   };
 
   pubspecLock = lib.importJSON ./pubspec.lock.json;
diff --git a/pkgs/by-name/da/dart-sass/pubspec.lock.json b/pkgs/by-name/da/dart-sass/pubspec.lock.json
index bf2b9c210cb0..46debc0d3d30 100644
--- a/pkgs/by-name/da/dart-sass/pubspec.lock.json
+++ b/pkgs/by-name/da/dart-sass/pubspec.lock.json
@@ -394,11 +394,11 @@
       "dependency": "direct main",
       "description": {
         "name": "node_interop",
-        "sha256": "3af2420c728173806f4378cf89c53ba9f27f7f67792b898561bff9d390deb98e",
+        "sha256": "4848ac408c0cdd0f70136b755df816a8e4c96c244e5377a3fb3b8f8950666150",
         "url": "https://pub.dev"
       },
       "source": "hosted",
-      "version": "2.1.0"
+      "version": "2.2.0"
     },
     "node_preamble": {
       "dependency": "direct dev",