diff --git a/pkgs/development/python-modules/pynut2/default.nix b/pkgs/development/python-modules/pynut2/default.nix
index 44c687f12592..a00f3d32dcfb 100644
--- a/pkgs/development/python-modules/pynut2/default.nix
+++ b/pkgs/development/python-modules/pynut2/default.nix
@@ -3,12 +3,14 @@
   buildPythonPackage,
   fetchFromGitHub,
   requests,
+  standard-telnetlib,
+  setuptools,
 }:
 
 buildPythonPackage rec {
   pname = "pynut2";
   version = "2.1.2";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "mezz64";
@@ -17,7 +19,12 @@ buildPythonPackage rec {
     sha256 = "1lg7n1frndfgw73s0ssl1h7kc6zxm7fpiwlc6v6d60kxzaj1dphx";
   };
 
-  propagatedBuildInputs = [ requests ];
+  build-system = [ setuptools ];
+
+  dependencies = [
+    requests
+    standard-telnetlib
+  ];
 
   pythonImportsCheck = [ "pynut2.nut2" ];