diff --git a/app/build.gradle b/app/build.gradle
index 01061c4f..17e96117 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -4,6 +4,7 @@ plugins {
 
 android {
     compileSdkVersion 28
+    ndkVersion '21.1.6352462'
 
     dependencies {
         implementation "androidx.annotation:annotation:1.1.0"
diff --git a/terminal-emulator/build.gradle b/terminal-emulator/build.gradle
index dd6da0a3..b0baa946 100644
--- a/terminal-emulator/build.gradle
+++ b/terminal-emulator/build.gradle
@@ -18,6 +18,7 @@ ext {
 
 android {
     compileSdkVersion 28
+    ndkVersion '21.1.6352462'
 
     defaultConfig {
         minSdkVersion 21