diff --git a/app/build.gradle b/app/build.gradle
index 08a940c..a36e10e 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,12 +1,12 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 26
-    buildToolsVersion "26.0.2"
+    compileSdkVersion 27
+    buildToolsVersion '27.0.3'
     defaultConfig {
         applicationId "com.example.android.inventoryapp"
         minSdkVersion 16
-        targetSdkVersion 26
+        targetSdkVersion 27
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -21,7 +21,7 @@ android {
 
 dependencies {
     //noinspection GradleCompatible
-    compile 'com.android.support:appcompat-v7:26.0.0-alpha1'
-    compile 'com.android.support:design:26.0.0-alpha1'
-    compile 'com.android.support:recyclerview-v7:+'
+    implementation 'com.android.support:appcompat-v7:27.1.0'
+    implementation 'com.android.support:design:27.1.0'
+    implementation 'com.android.support:recyclerview-v7:27.1.0'
 }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index bb40785..71d6d5e 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,8 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     package="com.example.android.inventoryapp">
 
-    <uses-permission android:name="android.permission.MANAGE_DOCUMENTS" />
+    <uses-permission android:name="android.permission.MANAGE_DOCUMENTS"
+        tools:ignore="ProtectedPermissions" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
 
     <application
diff --git a/build.gradle b/build.gradle
index a47fa4b..804e9f4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,9 +3,10 @@
 buildscript {
     repositories {
         jcenter()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.1.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -15,6 +16,7 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        google()
     }
 }
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 26587e0..7fe1009 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Wed Nov 08 14:18:07 MST 2017
+#Wed Apr 04 11:45:55 MDT 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip