diff --git a/CMakeLists.txt b/CMakeLists.txt
index fbc93230c..a9f0df6b0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required (VERSION 3.0.2)
-project (EternalTCP VERSION 5.1.4)
+project (EternalTCP VERSION 5.1.5)
 
 option(BUILD_TEST "Build all unit test" OFF)
 option(CODE_COVERAGE "Enable code coverage" OFF)