diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4ab2d74cedcb255bf1ae8f0db289c6b3c66ea16f..451dd53b001b234bfad5423be70591187219a6b8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,7 +6,7 @@ cmake_minimum_required(VERSION 2.6.4 FATAL_ERROR)
 project(OpenStructure CXX C)
 set (CMAKE_EXPORT_COMPILE_COMMANDS 1)
 set (OST_VERSION_MAJOR 1)
-set (OST_VERSION_MINOR 5)
+set (OST_VERSION_MINOR 6)
 set (OST_VERSION_PATCH 0)
 set (OST_VERSION_STRING ${OST_VERSION_MAJOR}.${OST_VERSION_MINOR}.${OST_VERSION_PATCH} )
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR}/cmake_support)