diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4b27926f3..249d5149e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -66,7 +66,7 @@ set(LIBYANG_VERSION ${LIBYANG_MAJOR_VERSION}.${LIBYANG_MINOR_VERSION}.${LIBYANG_
 # set version of the library
 set(LIBYANG_MAJOR_SOVERSION 2)
 set(LIBYANG_MINOR_SOVERSION 40)
-set(LIBYANG_MICRO_SOVERSION 5)
+set(LIBYANG_MICRO_SOVERSION 6)
 set(LIBYANG_SOVERSION_FULL ${LIBYANG_MAJOR_SOVERSION}.${LIBYANG_MINOR_SOVERSION}.${LIBYANG_MICRO_SOVERSION})
 set(LIBYANG_SOVERSION ${LIBYANG_MAJOR_SOVERSION})