diff --git a/build.gradle b/build.gradle
index 11498548..ad47189b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,11 +3,7 @@
 apply plugin: 'com.github.ben-manes.versions'
 
 buildscript {
-    ext {
-        kotlinVersion = '1.3.21'
-        lifecycleVersion = '2.0.0'
-        roomVersion = '2.1.0-alpha04'
-    }
+    ext.kotlinVersion = '1.3.21'
     repositories {
         google()
         jcenter()
diff --git a/mobile/build.gradle b/mobile/build.gradle
index 7058b169..b54a0a32 100644
--- a/mobile/build.gradle
+++ b/mobile/build.gradle
@@ -67,6 +67,8 @@ def aux = [
         'com.crashlytics.sdk.android:crashlytics:2.9.9',
         'com.google.firebase:firebase-core:16.0.7',
 ]
+def lifecycleVersion = '2.0.0'
+def roomVersion = '2.1.0-alpha04'
 dependencies {
     kapt "androidx.lifecycle:lifecycle-compiler:$lifecycleVersion"
     kapt "androidx.room:room-compiler:$roomVersion"