diff --git a/app/src/main/java/io/mvpstarter/sample/data/local/PreferencesHelper.java b/app/src/main/java/io/mvpstarter/sample/data/local/PrefHelper.java
similarity index 92%
rename from app/src/main/java/io/mvpstarter/sample/data/local/PreferencesHelper.java
rename to app/src/main/java/io/mvpstarter/sample/data/local/PrefHelper.java
index 41a829e..bec3e46 100644
--- a/app/src/main/java/io/mvpstarter/sample/data/local/PreferencesHelper.java
+++ b/app/src/main/java/io/mvpstarter/sample/data/local/PrefHelper.java
@@ -7,14 +7,14 @@
 import javax.inject.Singleton;
 
 @Singleton
-public class PreferencesHelper {
+public class PrefHelper {
 
     private static final String PREF_FILE_NAME = "mvpstarter_pref_file";
 
     private final SharedPreferences preferences;
 
     @Inject
-    PreferencesHelper(SharedPreferences sharedPreferences) {
+    PrefHelper(SharedPreferences sharedPreferences) {
         preferences = sharedPreferences;
     }
 
diff --git a/app/src/main/java/io/mvpstarter/sample/injection/component/AppComponent.java b/app/src/main/java/io/mvpstarter/sample/injection/component/AppComponent.java
index 3da2724..0d24ad6 100644
--- a/app/src/main/java/io/mvpstarter/sample/injection/component/AppComponent.java
+++ b/app/src/main/java/io/mvpstarter/sample/injection/component/AppComponent.java
@@ -7,6 +7,7 @@
 
 import dagger.Component;
 import io.mvpstarter.sample.data.DataManager;
+import io.mvpstarter.sample.data.local.PrefHelper;
 import io.mvpstarter.sample.injection.ApplicationContext;
 import io.mvpstarter.sample.injection.module.AppModule;
 
@@ -20,4 +21,6 @@ public interface AppComponent {
     Application application();
 
     DataManager apiManager();
+
+    PrefHelper prefHelper();
 }
diff --git a/app/src/main/java/io/mvpstarter/sample/injection/module/AppModule.java b/app/src/main/java/io/mvpstarter/sample/injection/module/AppModule.java
index 5a94434..0f4e2f3 100644
--- a/app/src/main/java/io/mvpstarter/sample/injection/module/AppModule.java
+++ b/app/src/main/java/io/mvpstarter/sample/injection/module/AppModule.java
@@ -4,6 +4,8 @@
 import android.content.Context;
 import android.content.SharedPreferences;
 
+import javax.inject.Singleton;
+
 import dagger.Module;
 import dagger.Provides;
 import io.mvpstarter.sample.injection.ApplicationContext;
@@ -30,7 +32,7 @@ Context provideContext() {
     }
 
     @Provides
-    @ApplicationContext
+    @Singleton
     SharedPreferences provideSharedPreference(@ApplicationContext Context context) {
         return context.getSharedPreferences(PREF_FILE_NAME, Context.MODE_PRIVATE);
     }
diff --git a/build.gradle b/build.gradle
index 21ca3fc..323f2c1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         maven { url 'https://maven.fabric.io/public' }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.0-beta2'
+        classpath 'com.android.tools.build:gradle:3.0.0-beta5'
         //noinspection GradleDynamicVersion
         classpath 'io.fabric.tools:gradle:1.+'
         classpath 'com.google.gms:google-services:3.1.0'