diff --git a/pkgs/development/python-modules/co2signal/default.nix b/pkgs/development/python-modules/co2signal/default.nix
index 147e9c6e6de8..3c2e674ab5ee 100644
--- a/pkgs/development/python-modules/co2signal/default.nix
+++ b/pkgs/development/python-modules/co2signal/default.nix
@@ -2,21 +2,26 @@
   lib,
   buildPythonPackage,
   fetchPypi,
+  setuptools,
   requests,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "co2signal";
   version = "0.4.2";
-  format = "setuptools";
+  pyproject = true;
+
+  __structuredAttrs = true;
 
   src = fetchPypi {
-    inherit version;
+    inherit (finalAttrs) version;
     pname = "CO2Signal";
     hash = "sha256-8YdYbknLICRrZloGUZuscv5e1LIDZBcCPKZs6EMaNuo=";
   };
 
-  propagatedBuildInputs = [ requests ];
+  build-system = [ setuptools ];
+
+  dependencies = [ requests ];
   # Modules has no tests
   doCheck = false;
 
@@ -28,4 +33,4 @@ buildPythonPackage rec {
     license = lib.licenses.gpl3Only;
     maintainers = with lib.maintainers; [ plabadens ];
   };
-}
+})