diff --git a/CMakeLists.txt b/CMakeLists.txt
index b3a62e8..f36b275 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@ cmake_minimum_required (VERSION 4.0)
 project (mraa C)
 
 cmake_policy(SET CMP0177 NEW)
-#cmake_policy(SET CMP0148 NEW)
+cmake_policy(SET CMP0148 NEW)
 
 FIND_PACKAGE (Threads REQUIRED)
 
@@ -78,17 +78,22 @@ if (BUILDCPP)
     endif ()
   endforeach ()
 
+  #-----------------------------------------------------------------
   # This function adds the c++20 flag to a c++ target (if supported)
-  function(use_cxx_20 targetname)
+  #function(use_cxx_20 targetname)
+    message(STATUS "\nInside function")
     include(CheckCXXCompilerFlag)
-    CHECK_CXX_COMPILER_FLAG("-std=c++20" COMPILER_SUPPORTS_CXX20)
+    CHECK_CXX_COMPILER_FLAG(-std=c++23 COMPILER_SUPPORTS_CXX20)
+    message(STATUS "check result ${COMPILER_SUPPORTS_CXX20}")
     if (COMPILER_SUPPORTS_CXX20)
-      set_target_properties(${targetname} PROPERTIES COMPILE_FLAGS "-std=c++20")
-      message(STATUS "INFO Use std=c++20")
+      set_target_properties(${targetname} PROPERTIES COMPILE_FLAGS "-std=c++23")
+      message(STATUS "INFO Use std=c++23")
     else()
       message(FATAL_ERROR "Target '${targetname}' requires c++20 which is not supported by this compiler")
     endif()
-  endfunction()
+  #endfunction()
+  #------------------------------------------------------------------
+  
 
 #  # This function adds the c++17 flag to a c++ target (if supported)
 #  function(use_cxx_17 targetname)