diff --git a/packages/ndk_flutter/android/build.gradle b/packages/ndk_flutter/android/build.gradle
index 6312bb6fd..deaf7fcd8 100644
--- a/packages/ndk_flutter/android/build.gradle
+++ b/packages/ndk_flutter/android/build.gradle
@@ -21,7 +21,11 @@ allprojects {
 }
 
 apply plugin: 'com.android.library'
-apply plugin: 'kotlin-android'
+
+// AGP 9+ bundles Kotlin (Flutter Built-in Kotlin); only apply KGP ourselves on older AGP.
+// Must stay on one line: Flutter's detection flags any line starting with `apply plugin: 'kotlin-android'`.
+def agpMajor = com.android.Version.ANDROID_GRADLE_PLUGIN_VERSION.tokenize('.')[0] as int
+if (agpMajor < 9) { apply plugin: 'kotlin-android' }
 
 android {
     if (project.android.hasProperty("namespace")) {
@@ -35,10 +39,6 @@ android {
         targetCompatibility = JavaVersion.VERSION_17
     }
 
-    kotlinOptions {
-        jvmTarget = '17'
-    }
-
     sourceSets {
         main.java.srcDirs += 'src/main/kotlin'
         test.java.srcDirs += 'src/test/kotlin'
@@ -67,6 +67,12 @@ android {
     }
 }
 
+kotlin {
+    compilerOptions {
+        jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17
+    }
+}
+
 subprojects {
     afterEvaluate { project ->
         if (project.extensions.findByName("android") != null) {