diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8076362d7..93701abf6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,6 +14,7 @@ set(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH};${CMAKE_CURRENT_SOURCE_DIR}/cmake_mo
 # configure C++17
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_EXTENSIONS OFF)
+set(CMAKE_OSX_DEPLOYMENT_TARGET "10.15" CACHE STRING "Minimum OS X deployment version")
 
 # keyvi specific compile options, definitions and flags
 set (_KEVYI_COMPILE_OPTIONS "-Wall")
@@ -29,7 +30,6 @@ set (_OS_LIBRARIES "")
 # OSX specifics
 if (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
     set (_KEYVI_COMPILE_DEFINITIONS "${_KEYVI_COMPILE_DEFINITIONS} OS_MACOSX")
-    set (_KEYVI_CXX_FLAGS "${_KEYVI_CXX_FLAGS} -mmacosx-version-min=10.9")
 endif()
 
 # build type specific settings