diff --git a/android/build.gradle b/android/build.gradle
index 01fc4fb..6ef7a63 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -28,12 +28,24 @@ apply plugin: 'kotlin-android'
 android {
     compileSdkVersion 33
 
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'appmire.be.flutterjailbreakdetection'
+    }
+
     sourceSets {
         main.java.srcDirs += 'src/main/kotlin'
     }
     defaultConfig {
         minSdkVersion 17
     }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
 }
 
 dependencies {