diff --git a/app/build.gradle b/app/build.gradle
index 1aee14a..ddf1f8f 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,15 +1,16 @@
 apply plugin: 'com.android.application'
 
 android {
-	compileSdkVersion 25
-	buildToolsVersion "26.0.0"
+	compileSdkVersion compileAndTargetSdk
+	buildToolsVersion "26.0.1"
 
 	defaultConfig {
 		applicationId "com.example.fcm"
 		minSdkVersion 25
-		targetSdkVersion 25
+		targetSdkVersion compileAndTargetSdk
 		versionCode 1
 		versionName "1.0"
+		resConfigs('en', 'xxxhdpi')
 	}
 
 	buildTypes {
diff --git a/build.gradle b/build.gradle
index de375d8..061e856 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,18 +2,18 @@
 
 buildscript {
 	repositories {
-		maven { url 'https://maven.google.com' }
+		google()
 		jcenter()
 	}
 	dependencies {
-		classpath 'com.android.tools.build:gradle:2.3.3'
+		classpath 'com.android.tools.build:gradle:3.0.0-beta1'
 		classpath 'com.google.gms:google-services:3.1.0'
 	}
 }
 
 allprojects {
 	repositories {
-		maven { url 'https://maven.google.com' }
+		google()
 		jcenter()
 	}
 }
@@ -23,6 +23,7 @@ task clean(type: Delete) {
 }
 
 ext {
-	supportLibraryVersion = '25.4.0'
-	firebaseLibraryVersion = '11.0.2'
+	supportLibraryVersion = '26.0.1'
+	firebaseLibraryVersion = '11.0.4'
+	compileAndTargetSdk = 26
 }
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index b5c93e3..1e35e89 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/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-4.0-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip