diff --git a/android/build.gradle b/android/build.gradle
index 1f28a4d..4110ece 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -12,13 +12,17 @@ buildscript {
 
 apply plugin: 'com.android.library'
 
+def safeExtGet(prop, fallback) {
+    rootProject.ext.has(prop) ? rootProject.ext.get(prop) : fallback
+}
+
 android {
-    compileSdkVersion 26
-    buildToolsVersion "26.0.1"
+  compileSdkVersion safeExtGet('compileSdkVersion', 28)
+  buildToolsVersion safeExtGet('buildToolsVersion', "28.0.3")
 
     defaultConfig {
-        minSdkVersion 16
-        targetSdkVersion 26
+        minSdkVersion safeExtGet('minSdkVersion', 16)
+        targetSdkVersion safeExtGet('targetSdkVersion', 28)
         versionCode 1
         versionName "1.0"
     }
@@ -35,4 +39,3 @@ repositories {
 dependencies {
     compile 'com.facebook.react:react-native:+'
 }
-  
\ No newline at end of file