diff --git a/pkgs/data/themes/vimix/default.nix b/pkgs/data/themes/vimix/default.nix
index d92ff42f48c9..dc13b4abfb6b 100644
--- a/pkgs/data/themes/vimix/default.nix
+++ b/pkgs/data/themes/vimix/default.nix
@@ -4,21 +4,24 @@
 , gnome-shell
 , gtk-engine-murrine
 , gtk_engines
+, sassc
+, gitUpdater
 }:
 
 stdenv.mkDerivation rec {
   pname = "vimix-gtk-themes";
-  version = "2021-08-17";
+  version = "2022-04-24";
 
   src = fetchFromGitHub {
     owner = "vinceliuice";
     repo = pname;
     rev = version;
-    sha256 = "1pn737w99j4ij8qkgw0rrzhbcqzni73z5wnkfqgqqbhj38rafbpv";
+    sha256 = "0q0ahm060qvr7r9j3x9lxidjnwf032c2g1pcqw9mz93iy7vfn358";
   };
 
   nativeBuildInputs = [
     gnome-shell  # needed to determine the gnome-shell version
+    sassc
   ];
 
   buildInputs = [
@@ -29,15 +32,20 @@ stdenv.mkDerivation rec {
     gtk-engine-murrine
   ];
 
+  postPatch = ''
+    patchShebangs install.sh
+  '';
+
   installPhase = ''
     runHook preInstall
-    patchShebangs .
     mkdir -p $out/share/themes
-    name= ./install.sh --all --dest $out/share/themes
+    name= HOME="$TMPDIR" ./install.sh --all --dest $out/share/themes
     rm $out/share/themes/*/{AUTHORS,LICENSE}
     runHook postInstall
   '';
 
+  passthru.updateScript = gitUpdater {inherit pname version; };
+
   meta = with lib; {
     description = "Flat Material Design theme for GTK based desktop environments";
     homepage = "https://github.com/vinceliuice/vimix-gtk-themes";