diff --git a/build.gradle b/build.gradle
index f3df769865..d534f795b5 100644
--- a/build.gradle
+++ b/build.gradle
@@ -44,11 +44,8 @@ buildscript {
         maven { url "https://plugins.gradle.org/m2/" } // jacoco 0.2
     }
     dependencies {
-        // Update to 4.2.1 is not possible because it forces use build-tools 30.0.2
-        // and this is not available in travis so far
-        // see https://issuetracker.google.com/issues/162255866
-        classpath 'com.android.tools.build:gradle:4.1.3'
-        classpath 'com.google.gms:google-services:4.3.5'
+        classpath 'com.android.tools.build:gradle:4.2.1'
+        classpath 'com.google.gms:google-services:4.3.8'
         classpath 'com.google.firebase:firebase-crashlytics-gradle:2.7.0'
 
         // NOTE: Do not place your application dependencies here; they belong