diff --git a/sumo_pipelines/optimization/core.py b/sumo_pipelines/optimization/core.py
index 185cf64..0a322bd 100644
--- a/sumo_pipelines/optimization/core.py
+++ b/sumo_pipelines/optimization/core.py
@@ -96,7 +96,9 @@ def _update_mean(new_val_dict) -> dict:
                                 dict(
                                     zip(
                                         local_global_config.Optimization.ObjectiveFn.config.keys(),
-                                        [1e6]
+                                        [
+                                            None,
+                                        ]
                                         * len(
                                             local_global_config.Optimization.ObjectiveFn.config
                                         ),