diff --git a/.idea/caches/build_file_checksums.ser b/.idea/caches/build_file_checksums.ser
new file mode 100644
index 0000000..6aee837
Binary files /dev/null and b/.idea/caches/build_file_checksums.ser differ
diff --git a/.idea/caches/gradle_models.ser b/.idea/caches/gradle_models.ser
new file mode 100644
index 0000000..72280fa
Binary files /dev/null and b/.idea/caches/gradle_models.ser differ
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
new file mode 100644
index 0000000..15a15b2
--- /dev/null
+++ b/.idea/encodings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" addBOMForNewFiles="with NO BOM" />
+</project>
\ No newline at end of file
diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 7ac24c7..f43d428 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -3,6 +3,9 @@
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
+        <compositeConfiguration>
+          <compositeBuild compositeDefinitionSource="SCRIPT" />
+        </compositeConfiguration>
         <option name="distributionType" value="DEFAULT_WRAPPED" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
         <option name="modules">
diff --git a/.idea/misc.xml b/.idea/misc.xml
index ba7052b..9e762bb 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -5,26 +5,37 @@
     <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
     <option name="myNullables">
       <value>
-        <list size="4">
+        <list size="10">
           <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
           <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
           <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
           <item index="3" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
+          <item index="4" class="java.lang.String" itemvalue="javax.annotation.CheckForNull" />
+          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.Nullable" />
+          <item index="6" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNullable" />
+          <item index="7" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.qual.Nullable" />
+          <item index="8" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NullableDecl" />
+          <item index="9" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NullableType" />
         </list>
       </value>
     </option>
     <option name="myNotNulls">
       <value>
-        <list size="4">
+        <list size="9">
           <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.NotNull" />
           <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />
           <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.NonNull" />
           <item index="3" class="java.lang.String" itemvalue="android.support.annotation.NonNull" />
+          <item index="4" class="java.lang.String" itemvalue="androidx.annotation.NonNull" />
+          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNonNull" />
+          <item index="6" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.qual.NonNull" />
+          <item index="7" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NonNullDecl" />
+          <item index="8" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NonNullType" />
         </list>
       </value>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/.idea/modules.xml b/.idea/modules.xml
index d3dc902..102820f 100644
--- a/.idea/modules.xml
+++ b/.idea/modules.xml
@@ -2,6 +2,7 @@
 <project version="4">
   <component name="ProjectModuleManager">
     <modules>
+      <module fileurl="file://$PROJECT_DIR$/RxJavaInstantSearch.iml" filepath="$PROJECT_DIR$/RxJavaInstantSearch.iml" />
       <module fileurl="file://$PROJECT_DIR$/RxJavaSearch.iml" filepath="$PROJECT_DIR$/RxJavaSearch.iml" />
       <module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
     </modules>
diff --git a/app/build.gradle b/app/build.gradle
index ed34f61..2c0a730 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,14 +1,15 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 26
+    compileSdkVersion 29
     defaultConfig {
         applicationId "info.androidhive.rxjavasearch"
-        minSdkVersion 16
-        targetSdkVersion 26
+        minSdkVersion 26
+        targetSdkVersion 29
         versionCode 1
         versionName "1.0"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        multiDexEnabled true
     }
     buildTypes {
         release {
@@ -16,37 +17,43 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+    compileOptions {
+        compileOptions {
+            sourceCompatibility JavaVersion.VERSION_1_8
+            targetCompatibility JavaVersion.VERSION_1_8
+        }
+    }
 }
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation 'com.android.support:appcompat-v7:26.1.0'
-    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
-    implementation 'com.android.support:design:26.1.0'
-    testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'com.android.support.test:runner:1.0.1'
-    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
-
-    implementation 'com.android.support:recyclerview-v7:26.1.0'
+    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'com.google.android.material:material:1.0.0'
 
-    implementation 'io.reactivex.rxjava2:rxjava:2.1.9'
-    implementation 'io.reactivex.rxjava2:rxandroid:2.0.1'
+    implementation 'androidx.recyclerview:recyclerview:1.0.0'
 
-    compile 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0'
+    implementation 'io.reactivex.rxjava2:rxjava:2.2.7'
+    implementation 'io.reactivex.rxjava2:rxandroid:2.1.1'
 
-    // butter knife
-    implementation "com.jakewharton:butterknife:8.8.1"
-    annotationProcessor "com.jakewharton:butterknife-compiler:8.8.1"
+    implementation 'com.squareup.retrofit2:adapter-rxjava2:2.5.0'
+    //implementation 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0'
+    implementation 'com.jakewharton.rxbinding3:rxbinding-material:3.0.0-alpha2'
+    implementation 'com.jakewharton.rxbinding3:rxbinding:3.0.0-alpha2'
+    implementation "com.jakewharton:butterknife:10.1.0"
+    annotationProcessor "com.jakewharton:butterknife-compiler:10.1.0"
 
-    implementation "com.squareup.retrofit2:retrofit:2.0.0"
-    implementation "com.squareup.retrofit2:converter-gson:2.0.0"
+    implementation "com.squareup.retrofit2:retrofit:2.5.0"
+    implementation "com.squareup.retrofit2:converter-gson:2.5.0"
     implementation "com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0"
-    implementation "com.squareup.okhttp3:okhttp:3.0.1"
-    implementation "com.squareup.okhttp3:okhttp-urlconnection:3.0.1"
-    implementation "com.squareup.okhttp3:logging-interceptor:3.4.1"
+    implementation 'com.squareup.okhttp3:okhttp:4.0.0-alpha02'
+    implementation 'com.squareup.okhttp3:okhttp-urlconnection:4.0.0-alpha02'
+    implementation 'com.squareup.okhttp3:logging-interceptor:4.0.0-alpha02'
 
     // glide image library
-    implementation "com.github.bumptech.glide:glide:4.3.1"
+    implementation "com.github.bumptech.glide:glide:4.9.0"
 
-    implementation "com.jakewharton.rxbinding2:rxbinding:2.0.0"
+    testImplementation 'junit:junit:4.13-beta-3'
+    androidTestImplementation 'androidx.test:runner:1.2.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
 }
diff --git a/app/src/androidTest/java/info/androidhive/rxjavasearch/ExampleInstrumentedTest.java b/app/src/androidTest/java/info/androidhive/rxjavasearch/ExampleInstrumentedTest.java
index 7e1c525..ff03373 100644
--- a/app/src/androidTest/java/info/androidhive/rxjavasearch/ExampleInstrumentedTest.java
+++ b/app/src/androidTest/java/info/androidhive/rxjavasearch/ExampleInstrumentedTest.java
@@ -1,8 +1,8 @@
 package info.androidhive.rxjavasearch;
 
 import android.content.Context;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.runner.AndroidJUnit4;
+import androidx.test.InstrumentationRegistry;
+import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/app/src/main/java/info/androidhive/rxjavasearch/adapter/ContactsAdapter.java b/app/src/main/java/info/androidhive/rxjavasearch/adapter/ContactsAdapter.java
index c002dbe..2729ac2 100644
--- a/app/src/main/java/info/androidhive/rxjavasearch/adapter/ContactsAdapter.java
+++ b/app/src/main/java/info/androidhive/rxjavasearch/adapter/ContactsAdapter.java
@@ -5,7 +5,7 @@
  */
 
 import android.content.Context;
-import android.support.v7.widget.RecyclerView;
+import androidx.recyclerview.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
diff --git a/app/src/main/java/info/androidhive/rxjavasearch/adapter/ContactsAdapterFilterable.java b/app/src/main/java/info/androidhive/rxjavasearch/adapter/ContactsAdapterFilterable.java
index 2efbfa2..63ce273 100644
--- a/app/src/main/java/info/androidhive/rxjavasearch/adapter/ContactsAdapterFilterable.java
+++ b/app/src/main/java/info/androidhive/rxjavasearch/adapter/ContactsAdapterFilterable.java
@@ -5,7 +5,7 @@
  */
 
 import android.content.Context;
-import android.support.v7.widget.RecyclerView;
+import androidx.recyclerview.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
diff --git a/app/src/main/java/info/androidhive/rxjavasearch/view/LocalSearchActivity.java b/app/src/main/java/info/androidhive/rxjavasearch/view/LocalSearchActivity.java
index 4c58839..3c1e6fc 100644
--- a/app/src/main/java/info/androidhive/rxjavasearch/view/LocalSearchActivity.java
+++ b/app/src/main/java/info/androidhive/rxjavasearch/view/LocalSearchActivity.java
@@ -2,20 +2,20 @@
 
 import android.graphics.Color;
 import android.os.Build;
-import android.support.v7.app.AppCompatActivity;
+import androidx.appcompat.app.AppCompatActivity;
 import android.os.Bundle;
-import android.support.v7.widget.DefaultItemAnimator;
-import android.support.v7.widget.DividerItemDecoration;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
-import android.support.v7.widget.Toolbar;
+import androidx.recyclerview.widget.DefaultItemAnimator;
+import androidx.recyclerview.widget.DividerItemDecoration;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.appcompat.widget.Toolbar;
 import android.util.Log;
 import android.view.MenuItem;
 import android.view.View;
 import android.widget.EditText;
 
-import com.jakewharton.rxbinding2.widget.RxTextView;
-import com.jakewharton.rxbinding2.widget.TextViewTextChangeEvent;
+import com.jakewharton.rxbinding3.widget.RxTextView;
+import com.jakewharton.rxbinding3.widget.TextViewTextChangeEvent;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -99,8 +99,8 @@ private DisposableObserver<TextViewTextChangeEvent> searchContacts() {
         return new DisposableObserver<TextViewTextChangeEvent>() {
             @Override
             public void onNext(TextViewTextChangeEvent textViewTextChangeEvent) {
-                Log.d(TAG, "Search query: " + textViewTextChangeEvent.text());
-                mAdapter.getFilter().filter(textViewTextChangeEvent.text());
+                Log.d(TAG, "Search query: " + textViewTextChangeEvent.getText());
+                mAdapter.getFilter().filter(textViewTextChangeEvent.getText());
             }
 
             @Override
diff --git a/app/src/main/java/info/androidhive/rxjavasearch/view/MainActivity.java b/app/src/main/java/info/androidhive/rxjavasearch/view/MainActivity.java
index fd46650..8d11208 100644
--- a/app/src/main/java/info/androidhive/rxjavasearch/view/MainActivity.java
+++ b/app/src/main/java/info/androidhive/rxjavasearch/view/MainActivity.java
@@ -4,13 +4,10 @@
 import android.graphics.Color;
 import android.os.Build;
 import android.os.Bundle;
-import android.support.design.widget.FloatingActionButton;
-import android.support.design.widget.Snackbar;
-import android.support.v7.app.AppCompatActivity;
-import android.support.v7.widget.Toolbar;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
 import android.view.View;
-import android.view.Menu;
-import android.view.MenuItem;
 
 import butterknife.ButterKnife;
 import butterknife.OnClick;
diff --git a/app/src/main/java/info/androidhive/rxjavasearch/view/RemoteSearchActivity.java b/app/src/main/java/info/androidhive/rxjavasearch/view/RemoteSearchActivity.java
index 977eb3b..7928042 100644
--- a/app/src/main/java/info/androidhive/rxjavasearch/view/RemoteSearchActivity.java
+++ b/app/src/main/java/info/androidhive/rxjavasearch/view/RemoteSearchActivity.java
@@ -2,20 +2,20 @@
 
 import android.graphics.Color;
 import android.os.Build;
-import android.support.v7.app.AppCompatActivity;
+import androidx.appcompat.app.AppCompatActivity;
 import android.os.Bundle;
-import android.support.v7.widget.DefaultItemAnimator;
-import android.support.v7.widget.DividerItemDecoration;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
-import android.support.v7.widget.Toolbar;
+import androidx.recyclerview.widget.DefaultItemAnimator;
+import androidx.recyclerview.widget.DividerItemDecoration;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.appcompat.widget.Toolbar;
 import android.util.Log;
 import android.view.MenuItem;
 import android.view.View;
 import android.widget.EditText;
 
-import com.jakewharton.rxbinding2.widget.RxTextView;
-import com.jakewharton.rxbinding2.widget.TextViewTextChangeEvent;
+import com.jakewharton.rxbinding3.widget.RxTextView;
+import com.jakewharton.rxbinding3.widget.TextViewTextChangeEvent;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -135,9 +135,9 @@ private DisposableObserver<TextViewTextChangeEvent> searchContactsTextWatcher()
         return new DisposableObserver<TextViewTextChangeEvent>() {
             @Override
             public void onNext(TextViewTextChangeEvent textViewTextChangeEvent) {
-                Log.d(TAG, "Search query: " + textViewTextChangeEvent.text());
+                Log.d(TAG, "Search query: " + textViewTextChangeEvent.getText());
 
-                publishSubject.onNext(textViewTextChangeEvent.text().toString());
+                publishSubject.onNext(textViewTextChangeEvent.getText().toString());
             }
 
             @Override
diff --git a/app/src/main/res/layout/activity_local_search.xml b/app/src/main/res/layout/activity_local_search.xml
index 27f3312..09248e2 100644
--- a/app/src/main/res/layout/activity_local_search.xml
+++ b/app/src/main/res/layout/activity_local_search.xml
@@ -1,25 +1,25 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     tools:context="info.androidhive.rxjavasearch.view.MainActivity">
 
-    <android.support.design.widget.AppBarLayout
+    <com.google.android.material.appbar.AppBarLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:theme="@style/AppTheme.AppBarOverlay">
 
-        <android.support.v7.widget.Toolbar
+        <androidx.appcompat.widget.Toolbar
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
             android:background="@android:color/white"
             app:popupTheme="@style/AppTheme.PopupOverlay" />
 
-    </android.support.design.widget.AppBarLayout>
+    </com.google.android.material.appbar.AppBarLayout>
 
     <include layout="@layout/content_local_search" />
 
-</android.support.design.widget.CoordinatorLayout>
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 9e8a0f4..f4e380d 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -1,25 +1,25 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     tools:context="info.androidhive.rxjavasearch.view.MainActivity">
 
-    <android.support.design.widget.AppBarLayout
+    <com.google.android.material.appbar.AppBarLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:theme="@style/AppTheme.AppBarOverlay">
 
-        <android.support.v7.widget.Toolbar
+        <androidx.appcompat.widget.Toolbar
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
             android:background="@android:color/white"
             app:popupTheme="@style/AppTheme.PopupOverlay" />
 
-    </android.support.design.widget.AppBarLayout>
+    </com.google.android.material.appbar.AppBarLayout>
 
     <include layout="@layout/content_main" />
 
-</android.support.design.widget.CoordinatorLayout>
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/app/src/main/res/layout/activity_remote_search.xml b/app/src/main/res/layout/activity_remote_search.xml
index 8cc0caa..454b1b9 100644
--- a/app/src/main/res/layout/activity_remote_search.xml
+++ b/app/src/main/res/layout/activity_remote_search.xml
@@ -1,25 +1,25 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     tools:context="info.androidhive.rxjavasearch.view.MainActivity">
 
-    <android.support.design.widget.AppBarLayout
+    <com.google.android.material.appbar.AppBarLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:theme="@style/AppTheme.AppBarOverlay">
 
-        <android.support.v7.widget.Toolbar
+        <androidx.appcompat.widget.Toolbar
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
             android:background="@android:color/white"
             app:popupTheme="@style/AppTheme.PopupOverlay" />
 
-    </android.support.design.widget.AppBarLayout>
+    </com.google.android.material.appbar.AppBarLayout>
 
     <include layout="@layout/content_remote_search" />
 
-</android.support.design.widget.CoordinatorLayout>
\ No newline at end of file
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/content_local_search.xml b/app/src/main/res/layout/content_local_search.xml
index cd4c9d5..ac98593 100644
--- a/app/src/main/res/layout/content_local_search.xml
+++ b/app/src/main/res/layout/content_local_search.xml
@@ -16,7 +16,7 @@
         android:hint="@string/hint_search"
         android:paddingBottom="@dimen/dimen_20" />
 
-    <android.support.v7.widget.RecyclerView
+    <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/recycler_view"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
diff --git a/app/src/main/res/layout/content_remote_search.xml b/app/src/main/res/layout/content_remote_search.xml
index a0eeac3..1dee92c 100644
--- a/app/src/main/res/layout/content_remote_search.xml
+++ b/app/src/main/res/layout/content_remote_search.xml
@@ -16,7 +16,7 @@
         android:hint="@string/hint_search"
         android:paddingBottom="@dimen/dimen_20" />
 
-    <android.support.v7.widget.RecyclerView
+    <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/recycler_view"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
diff --git a/build.gradle b/build.gradle
index e6b32bc..eca7d40 100644
--- a/build.gradle
+++ b/build.gradle
@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.4.1'
         
 
         // NOTE: Do not place your application dependencies here; they belong
diff --git a/gradle.properties b/gradle.properties
index aac7c9b..9e6fce1 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -9,6 +9,8 @@
 
 # Specifies the JVM arguments used for the daemon process.
 # The setting is particularly useful for tweaking memory settings.
+android.enableJetifier=true
+android.useAndroidX=true
 org.gradle.jvmargs=-Xmx1536m
 
 # When configured, Gradle will run in incubating parallel mode.
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 49f164e..addd788 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Tue Feb 27 18:17:25 IST 2018
+#Fri Jun 14 13:41:13 CEST 2019
 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-5.1.1-all.zip