diff --git a/pyrogram/crypto/mtproto.py b/pyrogram/crypto/mtproto.py
index 2fc3b9f8..c893e3e5 100644
--- a/pyrogram/crypto/mtproto.py
+++ b/pyrogram/crypto/mtproto.py
@@ -1,20 +1,20 @@
-# Pyrogram - Telegram MTProto API Client Library for Python
-# Copyright (C) 2017-2018 Dan Tès <https://github.com/delivrance>
+#  Pyrogram - Telegram MTProto API Client Library for Python
+#  Copyright (C) 2017-present Dan <https://github.com/delivrance>
 #
-# This file is part of Pyrogram.
+#  This file is part of Pyrogram.
 #
-# Pyrogram is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License as published
-# by the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
+#  Pyrogram is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU Lesser General Public License as published
+#  by the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
 #
-# Pyrogram is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Lesser General Public License for more details.
+#  Pyrogram is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public License
-# along with Pyrogram.  If not, see <http://www.gnu.org/licenses/>.
+#  You should have received a copy of the GNU Lesser General Public License
+#  along with Pyrogram.  If not, see <http://www.gnu.org/licenses/>.
 
 import bisect
 from hashlib import sha256
diff --git a/pyrogram/types/inline_mode/inline_query_result_audio.py b/pyrogram/types/inline_mode/inline_query_result_audio.py
index 6ca8c34c..e36ecb11 100644
--- a/pyrogram/types/inline_mode/inline_query_result_audio.py
+++ b/pyrogram/types/inline_mode/inline_query_result_audio.py
@@ -1,5 +1,5 @@
 #  Pyrogram - Telegram MTProto API Client Library for Python
-#  Copyright (C) 2017-2020 Dan <https://github.com/delivrance>
+#  Copyright (C) 2017-present Dan <https://github.com/delivrance>
 #
 #  This file is part of Pyrogram.
 #