diff --git a/CMakeLists.txt b/CMakeLists.txt
index 47acc898..616a7e37 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required (VERSION 2.8.6)
 project (opendht)
 set (opendht_VERSION_MAJOR 0)
-set (opendht_VERSION_MINOR 5)
+set (opendht_VERSION_MINOR 5.1)
 set (opendht_VERSION ${opendht_VERSION_MAJOR}.${opendht_VERSION_MINOR})
 set (PACKAGE_VERSION ${opendht_VERSION})
 
diff --git a/configure.ac b/configure.ac
index 95824d19..715e1381 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT(opendht, 0.5)
+AC_INIT(opendht, 0.5.1)
 AC_CONFIG_AUX_DIR(ac)
 AM_INIT_AUTOMAKE([foreign])
 AC_CONFIG_HEADERS([config.h])