diff --git a/CMakeLists.txt b/CMakeLists.txt
index e2c3d6e2..a7b8ee43 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -46,7 +46,7 @@ endif()
 # Generic version of not only the library. Major version is reserved for really big changes of the project,
 # minor version changes with added functionality (new tool, functionality of the tool or library, ...) and
 # micro version is changed with a set of small changes or bugfixes anywhere in the project.
-set(NP2SRV_VERSION 2.2.20)
+set(NP2SRV_VERSION 2.2.21)
 
 # libyang required version
 set(LIBYANG_DEP_VERSION 2.2.0)