diff --git a/android/build.gradle b/android/build.gradle
index bf20879..771c6f3 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -1,3 +1,6 @@
+def safeExtGet(prop, fallback) {
+    rootProject.ext.has(prop) ? rootProject.ext.get(prop) : fallback
+}
 
 buildscript {
     repositories {
@@ -13,7 +16,7 @@ buildscript {
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 31
+    compileSdkVersion safeExtGet('compileSdkVersion', 31)
 
     namespace "com.melihyarikkaya.rnserialport"
 
@@ -23,8 +26,8 @@ android {
     }
 
     defaultConfig {
-        minSdkVersion 21
-        targetSdkVersion 31
+        minSdkVersion safeExtGet('minSdkVersion', 21)
+        targetSdkVersion safeExtGet('targetSdkVersion', 31)
         versionCode 1
         versionName "1.0"
     }