diff --git a/src/models.py b/src/models.py
index 2e880cc..69fe8b3 100644
--- a/src/models.py
+++ b/src/models.py
@@ -69,7 +69,7 @@ class EstimationRequest(BaseModel):
 class EstimationDetails(BaseModel):
     dtq: bool
     reason: str
-    tier: int
+    tier: float
     total_price: float
 
 class EstimationResult(BaseModel):