diff --git a/android/build.gradle b/android/build.gradle
index e6e3ab2..9989c6e 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -1,12 +1,16 @@
 apply plugin: 'com.android.library'
 
+def safeExtGet(prop, fallback) {
+    rootProject.ext.has(prop) ? rootProject.ext.get(prop) : fallback
+}
+
 android {
-    compileSdkVersion 25
-    buildToolsVersion "23.0.1"
+    compileSdkVersion safeExtGet('compileSdkVersion', 25)
+    buildToolsVersion safeExtGet('buildToolsVersion', '23.0.1')
 
     defaultConfig {
-        minSdkVersion 16
-        targetSdkVersion 23
+        minSdkVersion safeExtGet('minSdkVersion', 16)
+        targetSdkVersion safeExtGet('targetSdkVersion', 23)
     }
     buildTypes {
         release {
@@ -17,6 +21,6 @@ android {
 }
 
 dependencies {
-    compile 'com.facebook.react:react-native:+'
-    compile 'com.baidu.mobstat:mtj-sdk:latest.integration'
+    implementation 'com.facebook.react:react-native:+'
+    implementation 'com.baidu.mobstat:mtj-sdk:latest.integration'
 }