diff --git a/examples/android/build.gradle b/examples/android/build.gradle
index fe879089c..35f7a07a6 100644
--- a/examples/android/build.gradle
+++ b/examples/android/build.gradle
@@ -3,10 +3,11 @@
 buildscript {
     repositories {
         jcenter()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.0'
-        classpath 'com.getkeepsafe.dexcount:dexcount-gradle-plugin:0.5.2'
+        classpath 'com.android.tools.build:gradle:3.2.0-beta01'
+        classpath 'com.getkeepsafe.dexcount:dexcount-gradle-plugin:0.8.3'
     }
 }
 
@@ -14,19 +15,19 @@ allprojects {
     repositories {
         jcenter()
         mavenLocal()
+        google()
     }
 }
 
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 26
-    buildToolsVersion "26.0.1"
+    compileSdkVersion 28
 
     defaultConfig {
         applicationId "com.dropbox.core.examples.android"
         minSdkVersion 19
-        targetSdkVersion 26
+        targetSdkVersion 28
         versionCode 1
         versionName "1.0"
     }
@@ -58,15 +59,12 @@ android {
 }
 
 dependencies {
-    compile group: 'com.dropbox.core', name: 'dropbox-core-sdk', version: '0-SNAPSHOT', changing: true
-    compile 'com.android.support:appcompat-v7:23.1.1'
-    compile 'com.android.support:design:23.1.1'
-    compile 'com.android.support:recyclerview-v7:23.1.1'
-    // picasso 2.5.2 doesn't have OkHttp3 support (although it exists
-    // on master). Must use OkHttp v2 and v3 until new picasso release
-    compile 'com.squareup.picasso:picasso:2.5.2'
-    compile 'com.squareup.okhttp:okhttp:2.7.5'
-    compile 'com.squareup.okhttp3:okhttp:3.5.0'
+    implementation group: 'com.dropbox.core', name: 'dropbox-core-sdk', version: '0-SNAPSHOT', changing: true
+    implementation 'com.android.support:appcompat-v7:28.0.0-alpha3'
+    implementation 'com.android.support:design:28.0.0-alpha3'
+    implementation 'com.android.support:recyclerview-v7:28.0.0-alpha3'
+    implementation 'com.squareup.picasso:picasso:2.71828'
+    api 'com.squareup.okhttp3:okhttp:3.10.0'
 }
 
 apply plugin: 'com.getkeepsafe.dexcount'
diff --git a/examples/android/gradle/wrapper/gradle-wrapper.properties b/examples/android/gradle/wrapper/gradle-wrapper.properties
index 0d0b30d62..f44f35fe7 100644
--- a/examples/android/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/android/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Wed Apr 27 11:21:25 PDT 2016
+#Sun Jun 24 16:05:27 PDT 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.10-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/examples/android/proguard-rules-debug.pro b/examples/android/proguard-rules-debug.pro
index d27c34abd..ab8f4bee6 100644
--- a/examples/android/proguard-rules-debug.pro
+++ b/examples/android/proguard-rules-debug.pro
@@ -1,2 +1,2 @@
 -dontobfuscate
--include "proguard-rules.pro"
+-include proguard-rules.pro
diff --git a/examples/android/proguard-rules.pro b/examples/android/proguard-rules.pro
index 10429de81..3150ce2ad 100644
--- a/examples/android/proguard-rules.pro
+++ b/examples/android/proguard-rules.pro
@@ -20,6 +20,7 @@
 
 -dontwarn okio.**
 -dontwarn okhttp3.**
+-dontwarn com.squareup.okhttp.**
 -dontwarn com.google.appengine.**
 -dontwarn javax.servlet.**
 
diff --git a/examples/android/src/main/java/com/dropbox/core/examples/android/FileThumbnailRequestHandler.java b/examples/android/src/main/java/com/dropbox/core/examples/android/FileThumbnailRequestHandler.java
index e0157de0b..7acf351ad 100644
--- a/examples/android/src/main/java/com/dropbox/core/examples/android/FileThumbnailRequestHandler.java
+++ b/examples/android/src/main/java/com/dropbox/core/examples/android/FileThumbnailRequestHandler.java
@@ -8,6 +8,7 @@
 import com.dropbox.core.v2.files.FileMetadata;
 import com.dropbox.core.v2.files.ThumbnailFormat;
 import com.dropbox.core.v2.files.ThumbnailSize;
+import okio.Okio;
 import com.squareup.picasso.Picasso;
 import com.squareup.picasso.Request;
 import com.squareup.picasso.RequestHandler;
@@ -54,7 +55,7 @@ public Result load(Request request, int networkPolicy) throws IOException {
                             .withSize(ThumbnailSize.W1024H768)
                             .start();
 
-            return new Result(downloader.getInputStream(), Picasso.LoadedFrom.NETWORK);
+            return new Result(Okio.source(downloader.getInputStream()), Picasso.LoadedFrom.NETWORK);
         } catch (DbxException e) {
             throw new IOException(e);
         }
diff --git a/examples/android/src/main/java/com/dropbox/core/examples/android/PicassoClient.java b/examples/android/src/main/java/com/dropbox/core/examples/android/PicassoClient.java
index 92a9f9dff..a275660f0 100644
--- a/examples/android/src/main/java/com/dropbox/core/examples/android/PicassoClient.java
+++ b/examples/android/src/main/java/com/dropbox/core/examples/android/PicassoClient.java
@@ -3,7 +3,7 @@
 import android.content.Context;
 
 import com.dropbox.core.v2.DbxClientV2;
-import com.squareup.picasso.OkHttpDownloader;
+import com.squareup.picasso.OkHttp3Downloader;
 import com.squareup.picasso.Picasso;
 
 /**
@@ -16,7 +16,7 @@ public static void init(Context context, DbxClientV2 dbxClient) {
 
         // Configure picasso to know about special thumbnail requests
         sPicasso = new Picasso.Builder(context)
-                .downloader(new OkHttpDownloader(context))
+                .downloader(new OkHttp3Downloader(context))
                 .addRequestHandler(new FileThumbnailRequestHandler(dbxClient))
                 .build();
     }
diff --git a/examples/android/src/main/java/com/dropbox/core/examples/android/UserActivity.java b/examples/android/src/main/java/com/dropbox/core/examples/android/UserActivity.java
index 904244346..72bd369d2 100644
--- a/examples/android/src/main/java/com/dropbox/core/examples/android/UserActivity.java
+++ b/examples/android/src/main/java/com/dropbox/core/examples/android/UserActivity.java
@@ -1,7 +1,6 @@
 package com.dropbox.core.examples.android;
 
 import android.content.Intent;
-import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.support.v7.widget.Toolbar;
 import android.util.Log;