diff --git a/pyrogram/utils.py b/pyrogram/utils.py
index 7ecb1e97..900d9a12 100644
--- a/pyrogram/utils.py
+++ b/pyrogram/utils.py
@@ -263,7 +263,7 @@ def unpack_inline_message_id(inline_message_id: str) -> "raw.base.InputBotInline
 
 MIN_CHANNEL_ID = -1002147483647
 MAX_CHANNEL_ID = -1000000000000
-MIN_CHAT_ID = -2147483647
+MIN_CHAT_ID = -999999999999
 MAX_USER_ID_OLD = 2147483647
 MAX_USER_ID = 999999999999