diff --git a/docs-android/app/build.gradle b/docs-android/app/build.gradle
index 25cfc4f4..a6238e78 100644
--- a/docs-android/app/build.gradle
+++ b/docs-android/app/build.gradle
@@ -4,7 +4,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.2.1'
+        classpath 'com.android.tools.build:gradle:3.3.0'
     }
 }
 apply plugin: 'com.android.application'
diff --git a/docs-android/app/src/main/java/com/sismics/docs/service/FileUploadService.java b/docs-android/app/src/main/java/com/sismics/docs/service/FileUploadService.java
index 07fcb6cd..4a17325a 100644
--- a/docs-android/app/src/main/java/com/sismics/docs/service/FileUploadService.java
+++ b/docs-android/app/src/main/java/com/sismics/docs/service/FileUploadService.java
@@ -1,10 +1,12 @@
 package com.sismics.docs.service;
 
 import android.app.IntentService;
+import android.app.NotificationChannel;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.content.Intent;
 import android.net.Uri;
+import android.os.Build;
 import android.os.PowerManager;
 import android.support.v4.app.NotificationCompat;
 import android.support.v4.app.NotificationCompat.Builder;
@@ -29,7 +31,8 @@ import okhttp3.internal.Util;
  * @author bgamard
  */
 public class FileUploadService extends IntentService {
-    private static final String TAG = "FileUploadService";
+    private static final String TAG = "sismicsdocs:fileupload";
+    private static final String CHANNEL_ID = "FileUploadService";
 
     private static final int UPLOAD_NOTIFICATION_ID = 1;
     private static final int UPLOAD_NOTIFICATION_ID_DONE = 2;
@@ -49,18 +52,30 @@ public class FileUploadService extends IntentService {
         super.onCreate();
 
         notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
-        notification = new NotificationCompat.Builder(this);
+        initChannels();
+        notification = new NotificationCompat.Builder(this, CHANNEL_ID);
         PowerManager pm = (PowerManager) getSystemService(POWER_SERVICE);
         wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG);
     }
 
+    private void initChannels() {
+        if (Build.VERSION.SDK_INT < 26) {
+            return;
+        }
+
+        NotificationChannel channel = new NotificationChannel(CHANNEL_ID,
+                "File Upload", NotificationManager.IMPORTANCE_HIGH);
+        channel.setDescription("Used to show file upload progress");
+        notificationManager.createNotificationChannel(channel);
+    }
+
     @Override
     protected void onHandleIntent(Intent intent) {
         if (intent == null) {
             return;
         }
 
-        wakeLock.acquire();
+        wakeLock.acquire(60_000 * 30); // 30 minutes upload time maximum
         try {
             onStart();
             handleFileUpload(intent.getStringExtra(PARAM_DOCUMENT_ID), (Uri) intent.getParcelableExtra(PARAM_URI));
@@ -77,7 +92,7 @@ public class FileUploadService extends IntentService {
      *
      * @param documentId Document ID
      * @param uri Data URI
-     * @throws IOException
+     * @throws IOException e
      */
     private void handleFileUpload(final String documentId, final Uri uri) throws Exception {
         final InputStream is = getContentResolver().openInputStream(uri);
diff --git a/docs-android/gradle/wrapper/gradle-wrapper.properties b/docs-android/gradle/wrapper/gradle-wrapper.properties
index 84239c64..b0546596 100644
--- a/docs-android/gradle/wrapper/gradle-wrapper.properties
+++ b/docs-android/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Thu Oct 18 22:37:49 CEST 2018
+#Wed Jan 30 16:31:31 CET 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip