diff --git a/src/aeros_simulation/utils.py b/src/aeros_simulation/utils.py
index e272187..e6fd9bf 100644
--- a/src/aeros_simulation/utils.py
+++ b/src/aeros_simulation/utils.py
@@ -3,7 +3,7 @@ def calculate_eaf(
         period_hours: float,
         actual_production: float,
         ideal_production: float
-    ) -> Dict[str, float]:
+    ):
         """
         Calculate EAF using the time-based method from PLN document
         EAF = [AH - (EFDH + EMDH + EPDH + ESEDH)] / PH × 100%