diff --git a/telegram-bot-api/Client.cpp b/telegram-bot-api/Client.cpp
index 8cad2d7..d084ac0 100644
--- a/telegram-bot-api/Client.cpp
+++ b/telegram-bot-api/Client.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/Client.h b/telegram-bot-api/Client.h
index 166ad2c..82714aa 100644
--- a/telegram-bot-api/Client.h
+++ b/telegram-bot-api/Client.h
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/ClientManager.cpp b/telegram-bot-api/ClientManager.cpp
index 602ab12..c6cd45c 100644
--- a/telegram-bot-api/ClientManager.cpp
+++ b/telegram-bot-api/ClientManager.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/ClientManager.h b/telegram-bot-api/ClientManager.h
index 143744a..bd82ee9 100644
--- a/telegram-bot-api/ClientManager.h
+++ b/telegram-bot-api/ClientManager.h
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/ClientParameters.h b/telegram-bot-api/ClientParameters.h
index fab4c3a..6956388 100644
--- a/telegram-bot-api/ClientParameters.h
+++ b/telegram-bot-api/ClientParameters.h
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/HttpConnection.cpp b/telegram-bot-api/HttpConnection.cpp
index a52d113..ade03d3 100644
--- a/telegram-bot-api/HttpConnection.cpp
+++ b/telegram-bot-api/HttpConnection.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/HttpConnection.h b/telegram-bot-api/HttpConnection.h
index d0d245c..0e3b39c 100644
--- a/telegram-bot-api/HttpConnection.h
+++ b/telegram-bot-api/HttpConnection.h
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/HttpServer.h b/telegram-bot-api/HttpServer.h
index 9699835..d5f0008 100644
--- a/telegram-bot-api/HttpServer.h
+++ b/telegram-bot-api/HttpServer.h
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/HttpStatConnection.cpp b/telegram-bot-api/HttpStatConnection.cpp
index 2606c89..d01af06 100644
--- a/telegram-bot-api/HttpStatConnection.cpp
+++ b/telegram-bot-api/HttpStatConnection.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/HttpStatConnection.h b/telegram-bot-api/HttpStatConnection.h
index dc1fa63..b653326 100644
--- a/telegram-bot-api/HttpStatConnection.h
+++ b/telegram-bot-api/HttpStatConnection.h
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/Query.cpp b/telegram-bot-api/Query.cpp
index 1d2d7e9..3478e04 100644
--- a/telegram-bot-api/Query.cpp
+++ b/telegram-bot-api/Query.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/Query.h b/telegram-bot-api/Query.h
index 7fdad09..8d79aba 100644
--- a/telegram-bot-api/Query.h
+++ b/telegram-bot-api/Query.h
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/Stats.cpp b/telegram-bot-api/Stats.cpp
index fe504f4..5c76e7f 100644
--- a/telegram-bot-api/Stats.cpp
+++ b/telegram-bot-api/Stats.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/Stats.h b/telegram-bot-api/Stats.h
index 661ddec..ae38426 100644
--- a/telegram-bot-api/Stats.h
+++ b/telegram-bot-api/Stats.h
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/Watchdog.cpp b/telegram-bot-api/Watchdog.cpp
index 8b8105e..1bb15e6 100644
--- a/telegram-bot-api/Watchdog.cpp
+++ b/telegram-bot-api/Watchdog.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/Watchdog.h b/telegram-bot-api/Watchdog.h
index 5ab0115..89ac3c6 100644
--- a/telegram-bot-api/Watchdog.h
+++ b/telegram-bot-api/Watchdog.h
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/WebhookActor.cpp b/telegram-bot-api/WebhookActor.cpp
index 8d55aef..762dce4 100644
--- a/telegram-bot-api/WebhookActor.cpp
+++ b/telegram-bot-api/WebhookActor.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/WebhookActor.h b/telegram-bot-api/WebhookActor.h
index ab3b8af..926a914 100644
--- a/telegram-bot-api/WebhookActor.h
+++ b/telegram-bot-api/WebhookActor.h
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/telegram-bot-api/telegram-bot-api.cpp b/telegram-bot-api/telegram-bot-api.cpp
index 37ca32a..8b7b975 100644
--- a/telegram-bot-api/telegram-bot-api.cpp
+++ b/telegram-bot-api/telegram-bot-api.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)