diff --git a/app/build.gradle b/app/build.gradle
index cecd809..c3f9a98 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -120,6 +120,7 @@ dependencies {
     implementation 'org.eclipse.paho:org.eclipse.paho.android.service:1.1.1'
 
     testImplementation 'junit:junit:4.13.2'
+    testImplementation 'org.robolectric:robolectric:4.10.3'
     androidTestImplementation 'androidx.test.ext:junit:1.1.5'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
 }