diff --git a/QtScrcpy/CMakeLists.txt b/QtScrcpy/CMakeLists.txt
index fc3e916..d0c12a5 100755
--- a/QtScrcpy/CMakeLists.txt
+++ b/QtScrcpy/CMakeLists.txt
@@ -52,8 +52,9 @@ if (MSVC)
     add_compile_options(/W3 /WX /wd4566)
 
     # avoid warning C4819
-    add_compile_options(-source-charset:utf-8)
-    #add_compile_options(/utf-8)
+    #add_compile_options(-source-charset:utf-8)
+    # /utf-8 will set source charset and execution charset to utf-8, so we don't need to set source-charset:utf-8
+    add_compile_options(/utf-8)
 
     # ensure we use minimal "windows.h" lib without the crazy min max macros
     add_compile_definitions(NOMINMAX WIN32_LEAN_AND_MEAN)
@@ -294,6 +295,9 @@ endif()
 
 # MacOS
 if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
+    # qt6 need 10.15 or later
+    set(CMAKE_OSX_DEPLOYMENT_TARGET "10.15")
+
     # copy bundle file
     get_target_property(MACOS_BUNDLE_PATH ${PROJECT_NAME} RUNTIME_OUTPUT_DIRECTORY)
     set(MACOS_BUNDLE_PATH ${MACOS_BUNDLE_PATH}/${PROJECT_NAME}.app/Contents)
diff --git a/ci/mac/build_for_mac.sh b/ci/mac/build_for_mac.sh
index b38a4bf..4791015 100755
--- a/ci/mac/build_for_mac.sh
+++ b/ci/mac/build_for_mac.sh
@@ -58,7 +58,7 @@ fi
 mkdir $build_path
 cd $build_path
 
-cmake_params="-DCMAKE_PREFIX_PATH=$qt_cmake_path -DCMAKE_BUILD_TYPE=$build_mode -DCMAKE_OSX_ARCHITECTURES=x86_64 -D CMAKE_OSX_DEPLOYMENT_TARGET=10.10"
+cmake_params="-DCMAKE_PREFIX_PATH=$qt_cmake_path -DCMAKE_BUILD_TYPE=$build_mode -DCMAKE_OSX_ARCHITECTURES=x86_64"
 cmake $cmake_params ../..
 if [ $? -ne 0 ] ;then
     echo "cmake failed"