diff --git a/app/build.gradle b/app/build.gradle
index 1e2cc60c3..b395fa882 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -57,6 +57,8 @@ dependencies {
     androidTestImplementation 'junit:junit:4.12'
 
     implementation 'com.google.firebase:firebase-messaging:15.0.2'
+    implementation 'com.android.billingclient:billing:1.2'
+
     implementation 'org.apache.commons:commons-compress:1.16.1'
     implementation 'com.android.support:support-v4:27.1.1'
     implementation 'com.android.support:recyclerview-v7:27.1.1'