diff --git a/android/build.gradle b/android/build.gradle
index 53a1a73..d815dca 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -1,23 +1,25 @@
 apply plugin: "com.android.library"
 
+def safeExtGet(prop, fallback) {
+  rootProject.ext.has(prop) ? rootProject.ext.get(prop) : fallback
+}
+
 android {
-    compileSdkVersion 25
-    buildToolsVersion "25.0.1"
+    compileSdkVersion safeExtGet('compileSdkVersion', 25)
+    buildToolsVersion safeExtGet('buildToolsVersion', "25.0.1")
 
     defaultConfig {
-        minSdkVersion 16
-        targetSdkVersion 23
-        versionCode 1
-        versionName "1.0"
+        minSdkVersion safeExtGet('minSdkVersion', 16)
+        targetSdkVersion safeExtGet('targetSdkVersion', 27)
     }
 }
 
 dependencies {
-    compile "com.facebook.react:react-native:+"  // From node_modules
-    compile 'com.android.support:customtabs:25.0.1'
-    compile ('com.github.droibit.customtabslauncher:launcher:1.0.8') {
+    implementation "com.facebook.react:react-native:+"  // From node_modules
+    implementation "com.android.support:customtabs:${safeExtGet('supportLibVersion', '25.0.1')}"
+    implementation ('com.github.droibit.customtabslauncher:launcher:1.0.8') {
         exclude module: 'customtabs'
     }
 
-    testCompile 'junit:junit:4.12'
-}
\ No newline at end of file
+    testImplementation 'junit:junit:4.12'
+}