diff --git a/src/musikdroid/app/src/main/java/io/casey/musikcube/remote/offline/OfflineDb.kt b/src/musikdroid/app/src/main/java/io/casey/musikcube/remote/offline/OfflineDb.kt
index 1c9db1142..bbf83e704 100644
--- a/src/musikdroid/app/src/main/java/io/casey/musikcube/remote/offline/OfflineDb.kt
+++ b/src/musikdroid/app/src/main/java/io/casey/musikcube/remote/offline/OfflineDb.kt
@@ -59,7 +59,7 @@ abstract class OfflineDb : RoomDatabase() {
         }
         .subscribeOn(Schedulers.io())
         .observeOn(AndroidSchedulers.mainThread())
-        .subscribe()
+        .subscribe({ _ -> }, { })
     }
 
     fun queryTracks(message: SocketMessage, responder: WebSocketService.Responder) {
diff --git a/src/musikdroid/build.gradle b/src/musikdroid/build.gradle
index f01e99cda..589d4eb7d 100644
--- a/src/musikdroid/build.gradle
+++ b/src/musikdroid/build.gradle
@@ -4,7 +4,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.0-alpha8'
+        classpath 'com.android.tools.build:gradle:3.0.0-alpha9'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
diff --git a/src/musikdroid/gradle/wrapper/gradle-wrapper.properties b/src/musikdroid/gradle/wrapper/gradle-wrapper.properties
index 0daa1b259..aee9f1b42 100644
--- a/src/musikdroid/gradle/wrapper/gradle-wrapper.properties
+++ b/src/musikdroid/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Tue Jul 11 22:05:46 PDT 2017
+#Mon Jul 31 19:43:07 PDT 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-milestone-1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-rc-1-all.zip