diff --git a/davtelepot/__init__.py b/davtelepot/__init__.py
index 67debfe..f7a6450 100644
--- a/davtelepot/__init__.py
+++ b/davtelepot/__init__.py
@@ -11,7 +11,7 @@ __author__ = "Davide Testa"
 __email__ = "davide@davte.it"
 __credits__ = ["Marco Origlia", "Nick Lee @Nickoala"]
 __license__ = "GNU General Public License v3.0"
-__version__ = "2.10.3"
+__version__ = "2.10.4"
 __maintainer__ = "Davide Testa"
 __contact__ = "t.me/davte"
 
diff --git a/davtelepot/api.py b/davtelepot/api.py
index 435afa2..ac0fa8f 100644
--- a/davtelepot/api.py
+++ b/davtelepot/api.py
@@ -1593,6 +1593,7 @@ class TelegramBot:
         )
 
     async def pinChatMessage(self, chat_id: Union[int, str], message_id,
+                             business_connection_id: str = None,
                              disable_notification: bool = None):
         """Pin a message in a group, a supergroup, or a channel.
 
@@ -1608,6 +1609,7 @@ class TelegramBot:
         )
 
     async def unpinChatMessage(self, chat_id: Union[int, str],
+                               business_connection_id: str = None,
                                message_id: int = None):
         """Unpin a message in a group, a supergroup, or a channel.