diff --git a/CMakeLists.txt b/CMakeLists.txt
index fad427c..c8a7a61 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,4 @@
-cmake_minimum_required(VERSION 2.4)
-
-
+cmake_minimum_required(VERSION 3.0)
 project(serialmultiplexer)
 
 set(SRC_FILES   main.cpp serial_io.cpp Socket.cpp )