diff --git a/app/build.gradle b/app/build.gradle
index 2d537b7e0..d6c88a74e 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -109,7 +109,7 @@ configurations {
 final DAGGER_VERSION = '2.16'
 final BUTTERKNIFE_VERSION = '9.0.0-rc2'
 final STETHO_VERSION = '1.5.0'
-final WORK_VERSION = '1.0.0-alpha10'
+final WORK_VERSION = '1.0.0-beta04'
 final LEAKCANARY_VERSION = '1.6.2'
 final ROOM_VERSION = '2.1.0-alpha03'
 
@@ -172,10 +172,6 @@ dependencies {
         exclude group: 'com.google.guava', module: 'listenablefuture'
     }
 
-    googleplayImplementation("android.arch.work:work-firebase:${WORK_VERSION}") {
-        // https://groups.google.com/forum/#!topic/guava-announce/Km82fZG68Sw
-        exclude group: 'com.google.guava', module: 'listenablefuture'
-    }
     googleplayImplementation 'com.crashlytics.sdk.android:crashlytics:2.9.8'
     googleplayImplementation "com.google.firebase:firebase-core:16.0.6"
     googleplayImplementation "com.google.android.gms:play-services-location:16.0.0"
diff --git a/app/src/main/java/org/tasks/injection/InjectingWorker.java b/app/src/main/java/org/tasks/injection/InjectingWorker.java
index dbd2acc5c..547487803 100644
--- a/app/src/main/java/org/tasks/injection/InjectingWorker.java
+++ b/app/src/main/java/org/tasks/injection/InjectingWorker.java
@@ -27,7 +27,7 @@ public abstract class InjectingWorker extends Worker {
       return run();
     } catch (Exception e) {
       tracker.reportException(e);
-      return Result.FAILURE;
+      return Result.failure();
     }
   }
 
diff --git a/app/src/main/java/org/tasks/jobs/AfterSaveWork.java b/app/src/main/java/org/tasks/jobs/AfterSaveWork.java
index ef584fa09..ecda05bf0 100644
--- a/app/src/main/java/org/tasks/jobs/AfterSaveWork.java
+++ b/app/src/main/java/org/tasks/jobs/AfterSaveWork.java
@@ -79,7 +79,7 @@ public class AfterSaveWork extends InjectingWorker {
     Task task = taskDao.fetch(taskId);
     if (task == null) {
       Timber.e("Missing saved task");
-      return Result.FAILURE;
+      return Result.failure();
     }
 
     reminderService.scheduleAlarm(task);
@@ -117,7 +117,7 @@ public class AfterSaveWork extends InjectingWorker {
       localBroadcastManager.broadcastRefresh();
     }
 
-    return Result.SUCCESS;
+    return Result.success();
   }
 
   private void updateCalendarTitle(Task task) {
diff --git a/app/src/main/java/org/tasks/jobs/BackupWork.java b/app/src/main/java/org/tasks/jobs/BackupWork.java
index a484ace2e..a13c9ac67 100644
--- a/app/src/main/java/org/tasks/jobs/BackupWork.java
+++ b/app/src/main/java/org/tasks/jobs/BackupWork.java
@@ -73,7 +73,7 @@ public class BackupWork extends RepeatingWorker {
   protected Result run() {
     startBackup(context);
     preferences.setLong(R.string.p_last_backup, now());
-    return Result.SUCCESS;
+    return Result.success();
   }
 
   @Override
diff --git a/app/src/main/java/org/tasks/jobs/CleanupWork.java b/app/src/main/java/org/tasks/jobs/CleanupWork.java
index c4ec8bdab..1242d36f1 100644
--- a/app/src/main/java/org/tasks/jobs/CleanupWork.java
+++ b/app/src/main/java/org/tasks/jobs/CleanupWork.java
@@ -41,7 +41,7 @@ public class CleanupWork extends InjectingWorker {
     long[] tasks = getInputData().getLongArray(EXTRA_TASK_IDS);
     if (tasks == null) {
       Timber.e("No task ids provided");
-      return Result.FAILURE;
+      return Result.failure();
     }
     for (long task : tasks) {
       alarmService.cancelAlarms(task);
@@ -58,7 +58,7 @@ public class CleanupWork extends InjectingWorker {
       }
     }
     timerPlugin.updateNotifications();
-    return Result.SUCCESS;
+    return Result.success();
   }
 
   @Override
diff --git a/app/src/main/java/org/tasks/jobs/DriveUploader.java b/app/src/main/java/org/tasks/jobs/DriveUploader.java
index e1ba3d441..fc8e6de2f 100644
--- a/app/src/main/java/org/tasks/jobs/DriveUploader.java
+++ b/app/src/main/java/org/tasks/jobs/DriveUploader.java
@@ -68,10 +68,10 @@ public class DriveUploader extends InjectingWorker {
         }
       }
 
-      return Result.SUCCESS;
+      return Result.success();
     } catch (IOException e) {
       tracker.reportException(e);
-      return Result.FAILURE;
+      return Result.failure();
     }
   }
 
diff --git a/app/src/main/java/org/tasks/jobs/MidnightRefreshWork.java b/app/src/main/java/org/tasks/jobs/MidnightRefreshWork.java
index da5fe38c4..0a82fd4bb 100644
--- a/app/src/main/java/org/tasks/jobs/MidnightRefreshWork.java
+++ b/app/src/main/java/org/tasks/jobs/MidnightRefreshWork.java
@@ -19,7 +19,7 @@ public class MidnightRefreshWork extends RepeatingWorker {
   @Override
   protected Result run() {
     localBroadcastManager.broadcastRefresh();
-    return Result.SUCCESS;
+    return Result.success();
   }
 
   @Override
diff --git a/app/src/main/java/org/tasks/jobs/RefreshWork.java b/app/src/main/java/org/tasks/jobs/RefreshWork.java
index 55f09da1d..331f3d429 100644
--- a/app/src/main/java/org/tasks/jobs/RefreshWork.java
+++ b/app/src/main/java/org/tasks/jobs/RefreshWork.java
@@ -21,7 +21,7 @@ public class RefreshWork extends RepeatingWorker {
   @Override
   public Result run() {
     localBroadcastManager.broadcastRefresh();
-    return Result.SUCCESS;
+    return Result.success();
   }
 
   @Override
diff --git a/app/src/main/java/org/tasks/jobs/SyncWork.java b/app/src/main/java/org/tasks/jobs/SyncWork.java
index d85d754ed..b63409fbd 100644
--- a/app/src/main/java/org/tasks/jobs/SyncWork.java
+++ b/app/src/main/java/org/tasks/jobs/SyncWork.java
@@ -30,7 +30,7 @@ public class SyncWork extends InjectingWorker {
   public Result run() {
     synchronized (LOCK) {
       if (preferences.isSyncOngoing()) {
-        return Result.RETRY;
+        return Result.retry();
       }
     }
 
@@ -45,7 +45,7 @@ public class SyncWork extends InjectingWorker {
       preferences.setSyncOngoing(false);
       localBroadcastManager.broadcastRefresh();
     }
-    return Result.SUCCESS;
+    return Result.success();
   }
 
   @Override