diff --git a/pyrogram/client/methods/chats/pin_chat_message.py b/pyrogram/client/methods/chats/pin_chat_message.py
index 663e59e8..16df6da7 100644
--- a/pyrogram/client/methods/chats/pin_chat_message.py
+++ b/pyrogram/client/methods/chats/pin_chat_message.py
@@ -47,7 +47,6 @@ class PinChatMessage(BaseClient):
 
         Raises:
             :class:`Error <pyrogram.Error>` in case of a Telegram RPC error.
-            ``ValueError`` if a chat_id doesn't belong to a supergroup or a channel.
         """
         await self.send(
             functions.messages.UpdatePinnedMessage(
diff --git a/pyrogram/client/methods/chats/unpin_chat_message.py b/pyrogram/client/methods/chats/unpin_chat_message.py
index 4fad19d8..efdd142f 100644
--- a/pyrogram/client/methods/chats/unpin_chat_message.py
+++ b/pyrogram/client/methods/chats/unpin_chat_message.py
@@ -38,7 +38,6 @@ class UnpinChatMessage(BaseClient):
 
         Raises:
             :class:`Error <pyrogram.Error>` in case of a Telegram RPC error.
-            ``ValueError`` if a chat_id doesn't belong to a supergroup or a channel.
         """
         await self.send(
             functions.messages.UpdatePinnedMessage(