diff --git a/HanoiTowers/client/android/build.gradle b/HanoiTowers/client/android/build.gradle
index d68dcc1..d0d7084 100644
--- a/HanoiTowers/client/android/build.gradle
+++ b/HanoiTowers/client/android/build.gradle
@@ -5,7 +5,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.6.0'
+        classpath 'com.android.tools.build:gradle:4.1.0'
     }
 }
 
@@ -37,7 +37,8 @@ android {
 
     compileSdkVersion androidCompileSdkVersion.toInteger()
 
-    buildToolsVersion '28.0.3'
+    buildToolsVersion '31.0.0'
+    ndkVersion '23.1.7779620'
 
     sourceSets {
         main {