diff --git a/pkgs/data/themes/layan-kde/default.nix b/pkgs/data/themes/layan-kde/default.nix
index 3b030337b7bc..7ca55d1dc74f 100644
--- a/pkgs/data/themes/layan-kde/default.nix
+++ b/pkgs/data/themes/layan-kde/default.nix
@@ -1,26 +1,40 @@
 { stdenv
 , lib
 , fetchFromGitHub
+, kdeclarative
+, plasma-framework
+, plasma-workspace
 , gitUpdater
 }:
 
 stdenv.mkDerivation rec {
   pname = "layan-kde";
-  version = "2022-02-13";
+  version = "unstable-2023-09-30";
 
   src = fetchFromGitHub {
     owner = "vinceliuice";
     repo = pname;
-    rev = version;
-    sha256 = "09z90g13l26v23nwr8n5bapwldp3hhdrdikynvm4vvb7qsvb4vrp";
+    rev = "7ab7cd7461dae8d8d6228d3919efbceea5f4272c";
+    hash = "sha256-Wh8tZcQEdTTlgtBf4ovapojHcpPBZDDkWOclmxZv9zA=";
   };
 
+  # Propagate sddm theme dependencies to user env otherwise sddm does
+  # not find them. Putting them in buildInputs is not enough.
+  propagatedUserEnvPkgs = [
+    kdeclarative.bin
+    plasma-framework
+    plasma-workspace
+  ];
+
   postPatch = ''
     patchShebangs install.sh
 
     substituteInPlace install.sh \
       --replace '$HOME/.local' $out \
       --replace '$HOME/.config' $out/share
+
+    substituteInPlace sddm/*/Main.qml \
+      --replace /usr $out
   '';
 
   installPhase = ''
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 98e699d6d150..2a8cf0c92d07 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -29512,7 +29512,9 @@ with pkgs;
 
   layan-gtk-theme = callPackage ../data/themes/layan-gtk-theme { };
 
-  layan-kde = callPackage ../data/themes/layan-kde { };
+  layan-kde = callPackage ../data/themes/layan-kde {
+    inherit (libsForQt5) kdeclarative plasma-framework plasma-workspace;
+  };
 
   lao = callPackage ../data/fonts/lao { };