diff --git a/CMakeLists.txt b/CMakeLists.txt
index 81373d4..64e6c6b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,7 +39,7 @@ include(CMakeDependentOption)
 project(gmio)
 set(GMIO_VERSION_MAJOR 0)
 set(GMIO_VERSION_MINOR 3)
-set(GMIO_VERSION_PATCH 0)
+set(GMIO_VERSION_PATCH 1)
 set(GMIO_VERSION
     ${GMIO_VERSION_MAJOR}.${GMIO_VERSION_MINOR}.${GMIO_VERSION_PATCH})
 
diff --git a/README.md b/README.md
index c580be9..650f877 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 </a>
 [![Coverage Status](https://coveralls.io/repos/fougue/gmio/badge.svg?branch=master&service=github)](https://coveralls.io/github/fougue/gmio?branch=master) 
 [![License](https://img.shields.io/badge/license-BSD%202--clause-blue.svg)](https://github.com/fougue/gmio/blob/master/LICENSE.txt)
-[![Version](https://img.shields.io/badge/version-v0.3.0-blue.svg?style=flat)](https://github.com/fougue/gmio/releases)  
+[![Version](https://img.shields.io/badge/version-v0.3.1-blue.svg?style=flat)](https://github.com/fougue/gmio/releases)  
 
 
 C library for geometry input/output