diff --git a/aiogram/bot/bot.py b/aiogram/bot/bot.py
index 435def3e..de81bb76 100644
--- a/aiogram/bot/bot.py
+++ b/aiogram/bot/bot.py
@@ -2129,7 +2129,8 @@ class Bot(BaseBot, DataMixin, ContextInstanceMixin):
         return types.Chat(**result)
 
     async def get_chat_administrators(self, chat_id: typing.Union[base.Integer, base.String]
-                                      ) -> typing.List[types.ChatMember]:
+                                      ) -> typing.List[typing.Union[types.ChatMemberOwner, types.ChatMemberAdministrator]]:
+
         """
         Use this method to get a list of administrators in a chat.
 
diff --git a/aiogram/types/chat.py b/aiogram/types/chat.py
index 2cd19a0f..c00a3b79 100644
--- a/aiogram/types/chat.py
+++ b/aiogram/types/chat.py
@@ -7,7 +7,7 @@ import typing
 from . import base, fields
 from .chat_invite_link import ChatInviteLink
 from .chat_location import ChatLocation
-from .chat_member import ChatMember
+from .chat_member import ChatMember, ChatMemberAdministrator, ChatMemberOwner
 from .chat_permissions import ChatPermissions
 from .chat_photo import ChatPhoto
 from .input_file import InputFile
@@ -470,7 +470,7 @@ class Chat(base.TelegramObject):
         """
         return await self.bot.leave_chat(self.id)
 
-    async def get_administrators(self) -> typing.List[ChatMember]:
+    async def get_administrators(self) -> typing.List[typing.Union[ChatMemberOwner, ChatMemberAdministrator]]:
         """
         Use this method to get a list of administrators in a chat.
 
@@ -480,7 +480,7 @@ class Chat(base.TelegramObject):
             chat administrators except other bots.
             If the chat is a group or a supergroup and no administrators were appointed,
             only the creator will be returned.
-        :rtype: :obj:`typing.List[types.ChatMember]`
+        :rtype: :obj:`typing.List[typing.Union[types.ChatMemberOwner, types.ChatMemberAdministrator]]`
         """
         return await self.bot.get_chat_administrators(self.id)
 
diff --git a/aiogram/types/chat_member.py b/aiogram/types/chat_member.py
index 957c28df..887f5f76 100644
--- a/aiogram/types/chat_member.py
+++ b/aiogram/types/chat_member.py
@@ -69,7 +69,9 @@ class ChatMember(base.TelegramObject):
         return self.user.id
 
     @classmethod
-    def resolve(cls, **kwargs) -> "ChatMember":
+    def resolve(cls, **kwargs) -> typing.Union["ChatMemberOwner", "ChatMemberAdministrator",
+                                               "ChatMemberMember", "ChatMemberRestricted",
+                                               "ChatMemberLeft", "ChatMemberBanned"]:
         status = kwargs.get("status")
         mapping = {
             ChatMemberStatus.OWNER: ChatMemberOwner,
@@ -89,8 +91,10 @@ class ChatMember(base.TelegramObject):
     def to_object(cls,
                   data: typing.Dict[str, typing.Any],
                   conf: typing.Dict[str, typing.Any] = None
-                  ) -> "ChatMember":
-        return cls.resolve(**data)
+                  ) -> typing.Union["ChatMemberOwner", "ChatMemberAdministrator",
+                                    "ChatMemberMember", "ChatMemberRestricted",
+                                    "ChatMemberLeft", "ChatMemberBanned"]:
+        return cls.resolve(conf=conf, **data)
 
     def is_chat_creator(self) -> bool:
         return ChatMemberStatus.is_chat_creator(self.status)