diff --git a/README.md b/README.md
index 10a1c22..7708cd6 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,7 @@
 This repository contains configuration files for building a custom NixOS ISO. The ISO is based on the `nixpkgs-unstable` repository and includes the latest Zen kernel (6.8+) with support for the latest filesystems, including `bcachefs`, `btrfs`, `ext4`.
 
 Two types of ISO can be built:-
+
 * Graphical
 * Minimal
 
@@ -23,12 +24,15 @@ git clone https://github.com/JohnRTitor/nix-iso.git
 cd nix-iso
 ```
 
-- For building full graphical ISO
-```
+* For building full graphical ISO
+
+```bash
 nix build .#nixosConfigurations.nixos-iso.config.system.build.isoImage
 ```
-- For building minimal ISO
-```
+
+* For building minimal ISO
+
+```bash
 nix build .#nixosConfigurations.nixos-minimal.config.system.build.isoImage
 ```
 
diff --git a/flake.lock b/flake.lock
index b9c339e..4ef9319 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,18 +2,17 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1714314149,
-        "narHash": "sha256-yNAevSKF4krRWacmLUsLK7D7PlfuY3zF0lYnGYNi9vQ=",
-        "owner": "nixos",
+        "lastModified": 1714253743,
+        "narHash": "sha256-mdTQw2XlariysyScCv2tTE45QSU9v/ezLcHJ22f0Nxc=",
+        "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "cf8cc1201be8bc71b7cbbbdaf349b22f4f99c7ae",
+        "rev": "58a1abdbae3217ca6b702f03d3b35125d88a2994",
         "type": "github"
       },
       "original": {
-        "owner": "nixos",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
+        "id": "nixpkgs",
+        "ref": "nixos-unstable",
+        "type": "indirect"
       }
     },
     "root": {
diff --git a/flake.nix b/flake.nix
index 1aca748..198e771 100644
--- a/flake.nix
+++ b/flake.nix
@@ -8,7 +8,7 @@
 
 {
   description = "Unstable NixOS custom installation media";
-  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+  inputs.nixpkgs.url = "nixpkgs/nixos-unstable";
   outputs =
     { self, nixpkgs }:
     let
diff --git a/graphical-configuration.nix b/graphical-configuration.nix
index c639e6c..2b4cf4f 100644
--- a/graphical-configuration.nix
+++ b/graphical-configuration.nix
@@ -35,7 +35,7 @@
     "cifs"
     "bcachefs"
     "ext4"
-  ] ++ lib.optionals (zfsSupport) [ "zfs" ];
+  ] ++ lib.optionals zfsSupport [ "zfs" ];
 
   networking.hostName = "nixos-iso"; # set live session hostname
 
@@ -46,7 +46,7 @@
 
   nixpkgs.config.allowUnfree = true;
   # Set environment variable for allowing non-free packages
-  environment.sessionVariables = rec {
+  environment.sessionVariables =  {
     NIXPKGS_ALLOW_UNFREE = "1";
   };
 
diff --git a/minimal-configuration.nix b/minimal-configuration.nix
index 81c46af..640a19d 100644
--- a/minimal-configuration.nix
+++ b/minimal-configuration.nix
@@ -32,14 +32,14 @@
     "ntfs"
     "bcachefs"
     "ext4"
-  ] ++ lib.optionals (zfsSupport) [ "zfs" ];
+  ] ++ lib.optionals zfsSupport [ "zfs" ];
 
   networking.hostName = "nixos-minimal"; # set live session hostname
   # Wireless network and wired network is enabled by default
 
   nixpkgs.config.allowUnfree = true;
   # Set environment variable for allowing non-free packages
-  environment.sessionVariables = rec {
+  environment.sessionVariables =  {
     NIXPKGS_ALLOW_UNFREE = "1";
   };