diff --git a/flake.lock b/flake.lock
index 6967c23..9e0cbd1 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1759155593,
-        "narHash": "sha256-potIJyEY7ExgfiMzr44/KBODFednyzRUAE2vs4aThHs=",
+        "lastModified": 1767428044,
+        "narHash": "sha256-w28Bmw3xM8NIva6RirQxcRE/PajQwGcSCgtrOQmLlE4=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "13ca7febc86978bdb67c0ae94f568b189ae84eef",
+        "rev": "6ff4ad3ef7624ff9cddbee962b1d1852e7fa6f40",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 42d5d3f..f8cc0cb 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,6 +1,5 @@
 {
   description = "Wayland Wallpaper Daemon";
-
   inputs.nixpkgs.url = "github:NixOS/nixpkgs?ref?nixos-unstable";
   outputs = {nixpkgs, ...}: let
     systems = ["x86_64-linux" "aarch64-linux"];
diff --git a/shell.nix b/shell.nix
index 54e94ef..987fb41 100644
--- a/shell.nix
+++ b/shell.nix
@@ -25,6 +25,9 @@ pkgs.mkShell {
 
     # System libraries
     glibc.dev
+
+    # For Tests
+    (python313.withPackages (ps: with ps; [matplotlib pyplot numpy]))
   ];
 
   nativeBuildInputs = with pkgs; [