diff --git a/visionSamples/barcode-reader/app/build.gradle b/visionSamples/barcode-reader/app/build.gradle
index 68c19a1f..83df58d5 100644
--- a/visionSamples/barcode-reader/app/build.gradle
+++ b/visionSamples/barcode-reader/app/build.gradle
@@ -1,13 +1,12 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 24
-    buildToolsVersion "24.0.1"
+    compileSdkVersion 28
 
     defaultConfig {
         applicationId "com.google.android.gms.samples.vision.barcodereader"
-        minSdkVersion 9
-        targetSdkVersion 24
+        minSdkVersion 14
+        targetSdkVersion 28
         versionCode 1
         versionName "1.0"
     }
@@ -20,9 +19,9 @@ android {
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
-    compile 'com.android.support:support-v4:24.2.0'
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'com.android.support:support-v4:28.0.0-rc02'
     // Important - the CameraSource implementation in this project requires version 8.1 or higher.
-    compile 'com.google.android.gms:play-services-vision:9.4.0+'
-    compile 'com.android.support:design:24.2.0'
+    implementation 'com.google.android.gms:play-services-vision:15.0.2'
+    implementation 'com.android.support:design:28.0.0-rc02'
 }
diff --git a/visionSamples/barcode-reader/build.gradle b/visionSamples/barcode-reader/build.gradle
index d14039de..0a8028e5 100644
--- a/visionSamples/barcode-reader/build.gradle
+++ b/visionSamples/barcode-reader/build.gradle
@@ -3,9 +3,13 @@
 buildscript {
     repositories {
         jcenter()
+        maven {
+            url 'https://maven.google.com/'
+            name 'Google'
+        }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.3'
+        classpath 'com.android.tools.build:gradle:3.1.4'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -15,5 +19,9 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url 'https://maven.google.com/'
+            name 'Google'
+        }
     }
 }
diff --git a/visionSamples/barcode-reader/gradle/wrapper/gradle-wrapper.properties b/visionSamples/barcode-reader/gradle/wrapper/gradle-wrapper.properties
index 1081cc34..0be7ee22 100644
--- a/visionSamples/barcode-reader/gradle/wrapper/gradle-wrapper.properties
+++ b/visionSamples/barcode-reader/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Wed Apr 10 15:27:10 PDT 2013
+#Wed Sep 12 15:15:57 EET 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip