diff --git a/aiogram/methods/base.py b/aiogram/methods/base.py
index 221ad9c0..b2d35bec 100644
--- a/aiogram/methods/base.py
+++ b/aiogram/methods/base.py
@@ -61,6 +61,8 @@ class TelegramMethod(BotContextController, BaseModel, Generic[TelegramType], ABC
         but UNSET might be passing to a model initialization from `Bot.method_name`,
         so we must take care of it and remove it before fields validation.
         """
+        if not isinstance(values, dict):
+            return values
         return {k: v for k, v in values.items() if not isinstance(v, UNSET_TYPE)}
 
     if TYPE_CHECKING:
diff --git a/tests/test_api/test_methods/test_base.py b/tests/test_api/test_methods/test_base.py
index 8d25dfde..498428ce 100644
--- a/tests/test_api/test_methods/test_base.py
+++ b/tests/test_api/test_methods/test_base.py
@@ -3,7 +3,7 @@ from unittest.mock import sentinel
 import pytest
 
 from aiogram.methods import GetMe, TelegramMethod
-from aiogram.types import User
+from aiogram.types import User, TelegramObject
 from tests.mocked_bot import MockedBot
 
 
@@ -16,12 +16,14 @@ class TestTelegramMethodRemoveUnset:
             [{"foo": "bar", "baz": sentinel.DEFAULT}, {"foo"}],
         ],
     )
-    def test_remove_unset(self, values, names):
-        validated = TelegramMethod.remove_unset(values)
+    @pytest.mark.parametrize("obj", [TelegramMethod, TelegramObject])
+    def test_remove_unset(self, values, names, obj):
+        validated = obj.remove_unset(values)
         assert set(validated.keys()) == names
 
-    def test_remove_unset_non_dict(self):
-        assert TelegramMethod.remove_unset("") == ""
+    @pytest.mark.parametrize("obj", [TelegramMethod, TelegramObject])
+    def test_remove_unset_non_dict(self, obj):
+        assert obj.remove_unset("") == ""
 
 
 class TestTelegramMethodCall: