diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index da6b05e..e1f439f 100755
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -34,7 +34,7 @@ set_target_properties(${PROJECT_NAME}
 # set version
 set_target_properties(${PROJECT_NAME}
     PROPERTIES
-    VERSION 1.1.2
+    VERSION 1.2.0
     SOVERSION 3)
 
 target_include_directories(${PROJECT_NAME}