diff --git a/CMakeLists.txt b/CMakeLists.txt
index 931912a..e9a20b7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.2)
 
-project(mbusd VERSION 0.5.2 LANGUAGES C)
+project(mbusd VERSION 0.5.3 LANGUAGES C)
 
 list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/extern_GPL)
 include(CheckFunctionExists)