diff --git a/CMakeLists.txt b/CMakeLists.txt
index cfbd59e3ac4f1e437bd2ecc6abb889d45a6a7898..f4ce4d675a556308f5b1031c3f4446050d9a15eb 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 (OST_VERSION_MAJOR 1)
 set (OST_VERSION_MINOR 3)
-set (OST_VERSION_PATCH 0)
+set (OST_VERSION_PATCH 1)
 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)
 include(OST)