diff --git a/build.gradle b/build.gradle
index 58039f10..a451a741 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,6 +5,7 @@ buildscript {
         google()
     }
     dependencies {
+        classpath "com.android.tools:r8:1.0.23"
         classpath 'com.android.tools.build:gradle:3.1.1'
     }
 }