diff --git a/build.gradle b/build.gradle
index 5db2196..cc5073d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -22,9 +22,10 @@
 buildscript {
     repositories {
         jcenter()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.2'
+        classpath 'com.android.tools.build:gradle:3.1.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files