diff --git a/aiogram/types/base.py b/aiogram/types/base.py
index 7ae00524..f97cf03a 100644
--- a/aiogram/types/base.py
+++ b/aiogram/types/base.py
@@ -16,6 +16,9 @@ class TelegramObject(BotContextController, BaseModel):
         populate_by_name=True,
         arbitrary_types_allowed=True,
         defer_build=True,
+        json_encoders={
+            Default: lambda obj: obj.name,
+        }
     )
 
     @model_validator(mode="before")