diff --git a/CMakeLists.txt b/CMakeLists.txt
index 154f97a..189cd84 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -35,7 +35,7 @@ set(VERSION_MAJOR "4")
 set(VERSION_MINOR "1")
 set(VERSION_RELEASE "0")
 set(VERSION ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_RELEASE})
-set(SOVERSION "8")
+set(SOVERSION "9")
 add_definitions(-D'VERSION="${VERSION}"') #"
 
 set(CMAKE_CXX_STANDARD 14)