diff --git a/pkgs/data/themes/catppuccin-kvantum/default.nix b/pkgs/data/themes/catppuccin-kvantum/default.nix
index 0588695b5bdf..169ac2147151 100644
--- a/pkgs/data/themes/catppuccin-kvantum/default.nix
+++ b/pkgs/data/themes/catppuccin-kvantum/default.nix
@@ -2,37 +2,40 @@
   lib,
   stdenvNoCC,
   fetchFromGitHub,
-  accent ? "Blue",
-  variant ? "Frappe",
+  unstableGitUpdater,
+  accent ? "blue",
+  variant ? "frappe",
 }: let
   pname = "catppuccin-kvantum";
 in
-  lib.checkListOfEnum "${pname}: theme accent" ["Blue" "Flamingo" "Green" "Lavender" "Maroon" "Mauve" "Peach" "Pink" "Red" "Rosewater" "Sapphire" "Sky" "Teal" "Yellow"] [accent]
-  lib.checkListOfEnum "${pname}: color variant" ["Latte" "Frappe" "Macchiato" "Mocha"] [variant]
+  lib.checkListOfEnum "${pname}: theme accent" ["blue" "flamingo" "green" "lavender" "maroon" "mauve" "peach" "pink" "red" "rosewater" "sapphire" "sky" "teal" "yellow"] [accent]
+  lib.checkListOfEnum "${pname}: color variant" ["latte" "frappe" "macchiato" "mocha"] [variant]
 
   stdenvNoCC.mkDerivation {
     inherit pname;
-    version = "unstable-2022-07-04";
+    version = "0-unstable-2024-10-10";
 
     src = fetchFromGitHub {
       owner = "catppuccin";
       repo = "Kvantum";
-      rev = "d1e174c85311de9715aefc1eba4b8efd6b2730fc";
-      sha256 = "sha256-IrHo8pnR3u90bq12m7FEXucUF79+iub3I9vgH5h86Lk=";
+      rev = "bdaa531318d5756cea5674a750a99134dad0bbbc";
+      hash = "sha256-O85y8Gg0l+xQP1eQi9GizuKfLEGePZ3wPdBNR+0V4ZQ=";
     };
 
     installPhase = ''
       runHook preInstall
       mkdir -p $out/share/Kvantum
-      cp -a src/Catppuccin-${variant}-${accent} $out/share/Kvantum
+      cp -a themes/catppuccin-${variant}-${accent} $out/share/Kvantum
       runHook postInstall
     '';
 
-    meta = with lib; {
+    passthru.updateScript = unstableGitUpdater { };
+
+    meta = {
       description = "Soothing pastel theme for Kvantum";
       homepage = "https://github.com/catppuccin/Kvantum";
-      license = licenses.mit;
-      platforms = platforms.linux;
-      maintainers = with maintainers; [ bastaynav ];
+      license = lib.licenses.mit;
+      platforms = lib.platforms.linux;
+      maintainers = [ lib.maintainers.bastaynav ];
     };
   }