diff --git a/build.gradle b/build.gradle
index 30be214f4..f3bdc57f5 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,8 @@
 buildscript {
     repositories {
+        mavenCentral()
         maven { url 'https://maven.google.com/' } // :-| must be before jcenter()
-        jcenter()
+        jcenter() // download from jCenter as last resort https://blog.autsoft.hu/a-confusing-dependency
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.1.1'
@@ -9,7 +10,8 @@ buildscript {
 }
 allprojects {
     repositories {
+        mavenCentral()
         maven { url 'https://maven.google.com/' } // :-| must be before jcenter()
-        jcenter()
+        jcenter() // download from jCenter as last resort https://blog.autsoft.hu/a-confusing-dependency
     }
 }