diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1b3f9a1..d2937a9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 2.8)
 include(GNUInstallDirs)
 
 # Grive version. remember to update it for every new release!
-set( GRIVE_VERSION "0.5.1" )
+set( GRIVE_VERSION "0.5.2-dev" )
 
 # common compile options
 add_definitions( -DVERSION="${GRIVE_VERSION}" )