diff --git a/server/CMakeLists.txt b/server/CMakeLists.txt
index e074e98cd..2a98c7772 100755
--- a/server/CMakeLists.txt
+++ b/server/CMakeLists.txt
@@ -14,7 +14,7 @@ if(NOT UNIX)
 endif()
 
 # set version
-set(NP2SRV_VERSION 0.6.21)
+set(NP2SRV_VERSION 0.6.22)
 
 # set default build type if not specified by user
 if(NOT CMAKE_BUILD_TYPE)