diff --git a/Easydict/Feature/Utility/EZAudioUtils/EZAudioUtils.m b/Easydict/Feature/Utility/EZAudioUtils/EZAudioUtils.m
index c18ed7160..59ed2348d 100644
--- a/Easydict/Feature/Utility/EZAudioUtils/EZAudioUtils.m
+++ b/Easydict/Feature/Utility/EZAudioUtils/EZAudioUtils.m
@@ -34,7 +34,7 @@ + (float)getSystemVolume {
     AudioObjectPropertyAddress address = {
         kAudioDevicePropertyVolumeScalar,
         kAudioDevicePropertyScopeOutput,
-        kAudioObjectPropertyElementMaster};
+        kAudioObjectPropertyElementMain};
     
     if (!AudioObjectHasProperty(outputDeviceID, &address)) {
         NSLog(@"No volume returned for device 0x%0x", outputDeviceID);
@@ -72,7 +72,7 @@ + (void)setSystemVolume:(float)volume {
     AudioObjectPropertyAddress address = {
         kAudioDevicePropertyVolumeScalar,
         kAudioDevicePropertyScopeOutput,
-        kAudioObjectPropertyElementMaster};
+        kAudioObjectPropertyElementMain};
     
     if (!AudioObjectHasProperty(outputDeviceID, &address)) {
         NSLog(@"No volume returned for device 0x%0x", outputDeviceID);
@@ -92,7 +92,7 @@ + (AudioDeviceID)getDefaultOutputDeviceID {
     AudioObjectPropertyAddress address = {
         kAudioHardwarePropertyDefaultOutputDevice,
         kAudioObjectPropertyScopeGlobal,
-        kAudioObjectPropertyElementMaster};
+        kAudioObjectPropertyElementMain};
     
     UInt32 dataSize = sizeof(AudioDeviceID);
     OSStatus status = AudioObjectGetPropertyData(kAudioObjectSystemObject, &address, 0, NULL, &dataSize, &outputDeviceID);
diff --git a/Easydict/Feature/Utility/EZDeviceSystemInfo/EZDeviceSystemInfo.m b/Easydict/Feature/Utility/EZDeviceSystemInfo/EZDeviceSystemInfo.m
index 79e11eb56..148da924f 100644
--- a/Easydict/Feature/Utility/EZDeviceSystemInfo/EZDeviceSystemInfo.m
+++ b/Easydict/Feature/Utility/EZDeviceSystemInfo/EZDeviceSystemInfo.m
@@ -57,7 +57,7 @@ + (NSString *)getDeviceModel {
 
 /// Get device UUID, 4F07896A-1580-5270-A0E8-D7FA9DFA6868
 + (NSString *)getDeviceUUID {
-    io_service_t platformExpert = IOServiceGetMatchingService(kIOMasterPortDefault, IOServiceMatching("IOPlatformExpertDevice"));
+    io_service_t platformExpert = IOServiceGetMatchingService(kIOMainPortDefault, IOServiceMatching("IOPlatformExpertDevice"));
     CFStringRef uuidString = (CFStringRef)IORegistryEntryCreateCFProperty(platformExpert, CFSTR("IOPlatformUUID"), kCFAllocatorDefault, 0);
     NSString *uuid = (__bridge NSString *)(uuidString);
     IOObjectRelease(platformExpert);