diff --git a/Android/app/build.gradle b/Android/app/build.gradle
index 7b0bfe8e..5bf67f9f 100644
--- a/Android/app/build.gradle
+++ b/Android/app/build.gradle
@@ -2,6 +2,7 @@ apply plugin: 'com.android.application'
 
 android {
     compileSdkVersion 28
+    ndkVersion "21.4.7075529"
     defaultConfig {
         applicationId "com.zlmediakit.demo"
         minSdkVersion 15