diff --git a/CMakeLists.txt b/CMakeLists.txt
index b72f3ac..413f742 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.2)
 
-project(mbusd VERSION 0.5.1)
+project(mbusd VERSION 0.5.2)
 
 list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/extern_GPL)
 include(CheckFunctionExists)
diff --git a/LICENSE b/LICENSE
index 2df3efd..1b52725 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2002-2003, 2013-2022 Victor Antonovich (v.antonovich@gmail.com)
+Copyright (c) 2002-2003, 2013-2023 Victor Antonovich (v.antonovich@gmail.com)
 Copyright (c) 2011 Andrew Denysenko <nitr0@seti.kr.ua>
 All rights reserved.
 
diff --git a/src/main.c b/src/main.c
index 79c91bc..14e4637 100644
--- a/src/main.c
+++ b/src/main.c
@@ -100,7 +100,7 @@ void
 usage(char *exename)
 {
   cfg_init();
-  printf("%s-%s Copyright (C) 2002-2003, 2011, 2013-2022 Victor Antonovich <v.antonovich@gmail.com>, "
+  printf("%s-%s Copyright (C) 2002-2003, 2011, 2013-2023 Victor Antonovich <v.antonovich@gmail.com>, "
    "Andrew Denysenko <nitr0@seti.kr.ua>\n\n"
    "Usage: %s [-h] [-d] "
 #ifdef LOG