diff --git a/aja-ntv2/default.nix b/aja-ntv2/default.nix
index 1df23a8..76c3ed2 100644
--- a/aja-ntv2/default.nix
+++ b/aja-ntv2/default.nix
@@ -2,13 +2,13 @@
   stdenv,
   callPackage,
   lib,
-  pkgs,
+  cmake,
   buildApps ? true,
 }:
 stdenv.mkDerivation {
   name = "ajantv2-dev";
   src = callPackage ./src.nix {};
-  nativeBuildInputs = [pkgs.cmake];
+  nativeBuildInputs = [ cmake ];
 
   cmakeFlags =
     [
diff --git a/aja-ntv2/src.nix b/aja-ntv2/src.nix
index 41abe02..be8a7de 100644
--- a/aja-ntv2/src.nix
+++ b/aja-ntv2/src.nix
@@ -1,4 +1,6 @@
-{ pkgs }: pkgs.fetchFromGitHub {
+{ fetchFromGitHub }:
+
+fetchFromGitHub {
   owner = "aja-video";
   repo = "ntv2";
   rev = "refs/heads/main";
diff --git a/flake.lock b/flake.lock
index 88e88e5..8a5b4ad 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,5 +1,22 @@
 {
   "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1694529238,
+        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "type": "github"
+      },
+      "original": {
+        "id": "flake-utils",
+        "type": "indirect"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1694499547,
@@ -15,8 +32,8 @@
     },
     "root": {
       "inputs": {
-        "nixpkgs": "nixpkgs",
-        "utils": "utils"
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
       }
     },
     "systems": {
@@ -33,24 +50,6 @@
         "repo": "default",
         "type": "github"
       }
-    },
-    "utils": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1694529238,
-        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
     }
   },
   "root": "root",
diff --git a/flake.nix b/flake.nix
index 080e53d..cc9dd51 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,13 +1,12 @@
 {
   description = "AJA video card software";
-  inputs.utils.url = "github:numtide/flake-utils";
 
   outputs = {
     self,
     nixpkgs,
-    utils,
+    flake-utils,
   }: (
-    utils.lib.eachSystem ["x86_64-linux"] (system: let
+    flake-utils.lib.eachSystem ["x86_64-linux"] (system: let
       pkgs = import nixpkgs {
         inherit system;
       };
@@ -18,10 +17,10 @@
       formatter = pkgs.alejandra;
     })
     ) // {
-      overlays.default = (final: prev: {
+      overlays.default = final: prev: {
         ajantv-utils = final.callPackage ./aja-ntv2/default.nix {};
         ajantv-driver = final.linuxPackages.callPackage ./aja-ntv2/driver.nix {};
         aja-ntv2-gst = self.packages.${prev.system}.aja-ntv2-gst;
-      });
+      };
     };
 }
diff --git a/ntv2-gst.nix b/ntv2-gst.nix
index c3239d3..8e76543 100644
--- a/ntv2-gst.nix
+++ b/ntv2-gst.nix
@@ -1,7 +1,11 @@
 {
   stdenv,
-  pkgs,
   fetchFromGitHub,
+  autoconf,
+  automake,
+  pkgconfig,
+  libtool,
+  gst_all_1,
   ajantv2,
 }:
 stdenv.mkDerivation {
@@ -15,7 +19,7 @@ stdenv.mkDerivation {
   sourceRoot = "source/gst-plugin";
   patches = [./no.patch];
 
-  nativeBuildInputs = with pkgs; [autoconf automake pkgconfig libtool gst_all_1.gst-plugins-base ajantv2];
+  nativeBuildInputs = [autoconf automake pkgconfig libtool gst_all_1.gst-plugins-base ajantv2];
   GST_NTV2 = "${ajantv2}/include";
   preConfigure = ''
     ./autogen.sh