diff --git a/AutomotiveOS/CarGearViewerKotlin/automotive/build.gradle b/AutomotiveOS/CarGearViewerKotlin/automotive/build.gradle
index 99cd9ee..60948c0 100644
--- a/AutomotiveOS/CarGearViewerKotlin/automotive/build.gradle
+++ b/AutomotiveOS/CarGearViewerKotlin/automotive/build.gradle
@@ -19,13 +19,13 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 
 android {
-    compileSdkVersion 29
-    buildToolsVersion "29.0.3"
+    compileSdkVersion 30
+    buildToolsVersion "30.0.0"
 
     defaultConfig {
         applicationId "com.example.cargearviewer"
-        minSdkVersion 28
-        targetSdkVersion 29
+        minSdkVersion 21
+        targetSdkVersion 30
         versionCode 1
         versionName "1.0"
 
diff --git a/AutomotiveOS/CarGearViewerKotlin/gradle/wrapper/gradle-wrapper.properties b/AutomotiveOS/CarGearViewerKotlin/gradle/wrapper/gradle-wrapper.properties
index 6fadaac..0c658e3 100644
--- a/AutomotiveOS/CarGearViewerKotlin/gradle/wrapper/gradle-wrapper.properties
+++ b/AutomotiveOS/CarGearViewerKotlin/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip