diff --git a/integration/ServiceTestRuleSample/app/build.gradle b/integration/ServiceTestRuleSample/app/build.gradle
index 40825f4bf..c23e59994 100644
--- a/integration/ServiceTestRuleSample/app/build.gradle
+++ b/integration/ServiceTestRuleSample/app/build.gradle
@@ -22,6 +22,7 @@ android {
 dependencies {
     // Testing-only dependencies
     // Force usage of support annotations in the test app, since it is internally used by the runner module.
+    androidTestCompile 'junit:junit:4.12'
     androidTestCompile 'com.android.support:support-annotations:' + rootProject.supportLibVersion;
     androidTestCompile 'com.android.support.test:runner:' + rootProject.runnerVersion;
     androidTestCompile 'com.android.support.test:rules:' + rootProject.rulesVersion;