diff --git a/build.gradle b/build.gradle
index 9d6a8fb6c..3969129fc 100644
--- a/build.gradle
+++ b/build.gradle
@@ -19,9 +19,8 @@ buildscript {
         google()
         jcenter()
     }
-
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.3'
+        classpath 'com.android.tools.build:gradle:3.6.2'
         classpath 'com.dicedmelon.gradle:jacoco-android:0.1.4'
     }
 }
@@ -33,6 +32,10 @@ allprojects {
     }
 }
 
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
+
 /**
  * Improve build server performance by allowing disabling of pre-dexing
  * (see http://tools.android.com/tech-docs/new-build-system/tips#TOC-Improving-Build-Server-performance.)