diff --git a/pkgs/development/python-modules/iceportal/default.nix b/pkgs/development/python-modules/iceportal/default.nix
index 316e366a5651..a587503bc072 100644
--- a/pkgs/development/python-modules/iceportal/default.nix
+++ b/pkgs/development/python-modules/iceportal/default.nix
@@ -23,11 +23,11 @@ buildPythonPackage rec {
     hash = "sha256-kpAUgGi2fAHzQYuZAaQW9wdrYjwbduRsoTwSuzcjJa8=";
   };
 
-  nativeBuildInputs = [
+  build-system = [
     poetry-core
   ];
 
-  propagatedBuildInputs = [
+  dependencies = [
     httpx
   ];