diff --git a/build.gradle b/build.gradle
index dc6d45323..2bd42d85b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -12,11 +12,12 @@ buildscript {
         google()
         jcenter()
         maven { url 'http://storage.googleapis.com/r8-releases/raw' }
+        maven { url 'https://kotlin.bintray.com/kotlinx' }
     }
     dependencies {
-        classpath 'com.android.tools:r8:1.4.79'
+        classpath 'com.android.tools:r8:1.4.93'
         classpath 'com.android.tools.build:gradle:3.5.0-alpha13'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.30"
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.31"
 
 
         // NOTE: Do not place your application dependencies here; they belong