diff --git a/schemas/service.py b/schemas/service.py
index da08a71..639dc9f 100644
--- a/schemas/service.py
+++ b/schemas/service.py
@@ -40,7 +40,7 @@ class ServiceSchema(BaseSchema):
     category_prices: List[ServiceCategoryPriceSchema]
     cost: Optional[int]
     rank: str
-    is_placeholder: bool = False
+    is_placeholder: Optional[bool] = False
 
 
 # endregion