diff --git a/build.gradle b/build.gradle
index 79ea1429d..df2779b45 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,17 +3,24 @@
 buildscript {
     repositories {
         jcenter()
+        maven {
+            url 'https://maven.google.com/'
+            name 'Google'
+        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.1'
+        classpath 'com.android.tools.build:gradle:3.2.1'
     }
 }
 
 allprojects {
     repositories {
-        mavenLocal()
         jcenter()
+        maven {
+            url 'https://maven.google.com/'
+            name 'Google'
+        }
     }
 }
 
diff --git a/demo/build.gradle b/demo/build.gradle
index cf5b8f5f1..162b48eda 100644
--- a/demo/build.gradle
+++ b/demo/build.gradle
@@ -9,7 +9,7 @@ dependencies {
 
 android {
     compileSdkVersion 25
-    buildToolsVersion "25.0.1"
+    buildToolsVersion '28.0.3'
 
     defaultConfig {
         minSdkVersion 14
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 57a43a9b6..41c6874b5 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sat Apr 29 17:27:18 CEST 2017
+#Mon Dec 10 16:14:53 CET 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/library/build.gradle b/library/build.gradle
index b3f25eea8..8b7a4085f 100644
--- a/library/build.gradle
+++ b/library/build.gradle
@@ -7,7 +7,7 @@ dependencies {
 android {
     compileSdkVersion 25
 
-    buildToolsVersion '25.0.2'
+    buildToolsVersion '28.0.3'
 
     resourcePrefix 'amu_'