diff --git a/home/applications/swaylock/default.nix b/home/applications/swaylock/default.nix
index 0b10977..e478d01 100644
--- a/home/applications/swaylock/default.nix
+++ b/home/applications/swaylock/default.nix
@@ -9,7 +9,7 @@
       daemonize = true;
       show-failed-attempts = true;
       show-keyboard-layout = true;
-      image = toString inputs.self.legacyPackages.${pkgs.stdenv.hostPlatform.system}.background.dark;
+      image = toString inputs.self.legacyPackages.${pkgs.stdenv.hostPlatform.system}.background;
       scaling = "fill";
     };
   };
diff --git a/pkgs/background.nix b/pkgs/background.nix
deleted file mode 100644
index 7000b8c..0000000
--- a/pkgs/background.nix
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-  fetchurl,
-  imagemagick,
-  runCommandLocal,
-}:
-runCommandLocal "49983419_p0.jpg" {
-  nativeBuildInputs = [imagemagick];
-
-  # https://www.pixiv.net/en/artworks/49983419
-  image = fetchurl {
-    url = "https://i.pximg.net/img-original/img/2015/04/23/12/43/35/49983419_p0.jpg";
-    hash = "sha256-JZ5VmsjVjZfHXpx3JxzAyYzZppZmgH38AiAA+B0TDiw=";
-    curlOptsList = ["-e" "https://www.pixiv.net/"];
-  };
-
-  outputs = ["out" "dark"];
-} ''
-  magick $image -crop 3500x1600+0+100 $out
-  magick $image \
-    -crop 3500x1600+0+100 \
-    -blur 8x8 \
-    -brightness-contrast -10,0 \
-    $dark
-''
diff --git a/pkgs/default.nix b/pkgs/default.nix
index d5665af..a4722d4 100644
--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -6,7 +6,7 @@ in {
   # https://github.com/NixOS/nixpkgs/pull/308720
   pixivfe = callPackage ./pixivfe.nix {};
 
-  background = callPackage ./background.nix {};
+  background = pkgs.nixos-artwork.wallpapers.nineish-dark-gray.src;
 
   scripts = lib.makeScope pkgs.newScope (self: let
     inherit (self) callPackage;