diff --git a/app/build.gradle b/app/build.gradle
index 27d3a65..5040557 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -27,7 +27,7 @@ dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation 'com.google.firebase:firebase-database:11.0.4'
     implementation 'com.google.firebase:firebase-messaging:11.0.4'
-    androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
+    androidTestImplementation('com.android.support.test.espresso:espresso-core:3.0.2', {
         exclude group: 'com.android.support', module: 'support-annotations'
     })
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"