diff --git a/tutorials/Polygons/app/build.gradle b/tutorials/Polygons/app/build.gradle
index f031bd96..f99f1171 100644
--- a/tutorials/Polygons/app/build.gradle
+++ b/tutorials/Polygons/app/build.gradle
@@ -25,6 +25,6 @@ dependencies {
     implementation 'androidx.appcompat:appcompat:1.1.0'
     implementation 'com.google.android.gms:play-services-maps:17.0.0'
     testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.0'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
 }
\ No newline at end of file