diff --git a/pkgs/by-name/la/labwc/package.nix b/pkgs/by-name/la/labwc/package.nix
index a3386c574a6c..6c9a6a2dc2a1 100644
--- a/pkgs/by-name/la/labwc/package.nix
+++ b/pkgs/by-name/la/labwc/package.nix
@@ -22,22 +22,28 @@
   wayland,
   wayland-protocols,
   wayland-scanner,
-  wlroots_0_19,
+  wlroots_0_20,
   libxcb-wm,
   xwayland,
 }:
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "labwc";
-  version = "0.9.7";
+  version = "0.20.0";
 
   src = fetchFromGitHub {
     owner = "labwc";
     repo = "labwc";
     tag = finalAttrs.version;
-    hash = "sha256-7lq/lcaYSc+mJOTkjtwF0LjOAg4Uck3BwAc+2RIntYo=";
+    hash = "sha256-JSs1Xys0+XAPbxLv5pR91K0/e78mu5xLKu0HGdFFCEM=";
   };
 
+  postPatch = ''
+    substituteInPlace meson.build \
+      --replace-fail "install_dir: systemd.get_variable('systemduserunitdir')" \
+                     "install_dir: '$out/lib/systemd/user'"
+  '';
+
   outputs = [
     "out"
     "doc"
@@ -67,7 +73,7 @@ stdenv.mkDerivation (finalAttrs: {
     pango
     wayland
     wayland-protocols
-    wlroots_0_19
+    wlroots_0_20
     libxcb-wm
     xwayland
   ];