diff --git a/app/build.gradle b/app/build.gradle
index 94452aabf..690c58114 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -27,8 +27,6 @@ dependencies {
   compile 'com.android.support:support-v4:24.1.0'
   compile 'com.android.support:design:24.1.0'
   compile 'com.android.support:cardview-v7:24.1.0'
-  compile 'com.android.support:multidex:1.0.1'
-
 
 
   androidTestCompile 'com.android.support:support-annotations:24.1.0'
@@ -74,7 +72,6 @@ dependencies {
       minSdkVersion 14
       targetSdkVersion 24
       testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-      multiDexEnabled = true
     }
 
     lintOptions {
@@ -91,6 +88,14 @@ dependencies {
     dexOptions {
       javaMaxHeapSize "4g"
     }
+
+    buildTypes {
+      release {
+        minifyEnabled true
+        proguardFiles getDefaultProguardFile('proguard-android.txt'),
+                'proguard-rules.pro'
+      }
+    }
     
     sourceSets {
       main {
diff --git a/app/src/main/java/org/kiwix/kiwixmobile/KiwixApplication.java b/app/src/main/java/org/kiwix/kiwixmobile/KiwixApplication.java
index 7cbbb854a..e3cf803f6 100644
--- a/app/src/main/java/org/kiwix/kiwixmobile/KiwixApplication.java
+++ b/app/src/main/java/org/kiwix/kiwixmobile/KiwixApplication.java
@@ -1,8 +1,6 @@
 package org.kiwix.kiwixmobile;
 
 import android.app.Application;
-import android.support.multidex.MultiDexApplication;
-
 import okhttp3.OkHttpClient;
 import org.kiwix.kiwixmobile.network.KiwixService;
 import retrofit2.Retrofit;
@@ -10,7 +8,7 @@ import retrofit2.adapter.rxjava.RxJavaCallAdapterFactory;
 import retrofit2.converter.simplexml.SimpleXmlConverterFactory;
 import rx.schedulers.Schedulers;
 
-public class KiwixApplication extends MultiDexApplication {
+public class KiwixApplication extends Application {
 
   private static KiwixService service;
   private static OkHttpClient client = new OkHttpClient().newBuilder().followRedirects(true).followSslRedirects(true).build();