diff --git a/mobile/build.gradle b/mobile/build.gradle
index fa18d22b..65c9646b 100644
--- a/mobile/build.gradle
+++ b/mobile/build.gradle
@@ -4,12 +4,12 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-kapt'
 
 android {
-    buildToolsVersion "27.0.3"
-    compileSdkVersion 27
+    buildToolsVersion "28.0.0"
+    compileSdkVersion 28
     defaultConfig {
         applicationId "be.mygod.vpnhotspot"
         minSdkVersion 21
-        targetSdkVersion 27
+        targetSdkVersion 28
         resConfigs "zh-rCN"
         versionCode 23
         versionName "1.3.2"