SDK and tools update
diff --git a/build.gradle b/build.gradle
index 90153f8..bfd3ffa 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,8 +2,9 @@
 buildscript {
     repositories {
         mavenCentral()
+        jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.0.0'
+        classpath 'com.android.tools.build:gradle:2.2.2'
     }
 }