diff --git a/.travis.yml b/.travis.yml
index 40b9a165..389dabd9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,7 +8,7 @@ android:
     - tools
     - tools
     - platfom-tools
-    - build-tools-25.0.2
+    - build-tools-26.0.1
     - android-25
     - extra-android-m2repository
   licenses:
diff --git a/app/build.gradle b/app/build.gradle
index b9e4b5fc..4bbfd8d2 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,12 +1,11 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.2'
+    compileSdkVersion 26
     defaultConfig {
         applicationId "org.asdtm.goodweather"
         minSdkVersion 14
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 13
         versionName "4.4"
         vectorDrawables.useSupportLibrary = true
@@ -15,22 +14,14 @@ android {
         release {
             minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-            applicationVariants.all { variant ->
-                variant.outputs.each { output ->
-                    output.outputFile = new File(
-                            output.outputFile.parent,
-                            output.outputFile.name.replace("app-release.apk", "GoodWeather-release-${variant.versionName}.apk"))
-                }
-            }
         }
         debug {
             minifyEnabled false
-            applicationVariants.all { variant ->
-                variant.outputs.each { output ->
-                    output.outputFile = new File(
-                            output.outputFile.parent,
-                            output.outputFile.name.replace("app-debug.apk", "GoodWeather-debug-${variant.versionName}.apk"))
-                }
+        }
+
+        applicationVariants.all { variant ->
+            variant.outputs.all { output ->
+                outputFileName = "GoodWeather-${variant.buildType.name}-${variant.versionName}" + ".apk"
             }
         }
     }
@@ -42,12 +33,12 @@ android {
 
 dependencies {
     compile fileTree(include: ['*.jar'], dir: 'libs')
-    compile 'com.android.support:appcompat-v7:25.3.1'
-    compile 'com.android.support:design:25.3.1'
-    compile 'com.android.support:cardview-v7:25.3.1'
-    compile 'com.android.support:support-v4:25.3.1'
+    compile 'com.android.support:appcompat-v7:26.1.0'
+    compile 'com.android.support:design:26.1.0'
+    compile 'com.android.support:cardview-v7:26.1.0'
+    compile 'com.android.support:support-v4:26.1.0'
     testCompile 'junit:junit:4.12'
-    compile 'com.google.code.gson:gson:2.6.2'
-    compile 'com.github.PhilJay:MPAndroidChart:v3.0.0-beta1'
+    compile 'com.google.code.gson:gson:2.8.0'
+    compile 'com.github.PhilJay:MPAndroidChart:v3.0.2'
     compile 'com.android.support.constraint:constraint-layout:1.0.2'
 }
diff --git a/app/src/main/java/org/asdtm/goodweather/GraphsActivity.java b/app/src/main/java/org/asdtm/goodweather/GraphsActivity.java
index 9117044d..c6fca2cf 100644
--- a/app/src/main/java/org/asdtm/goodweather/GraphsActivity.java
+++ b/app/src/main/java/org/asdtm/goodweather/GraphsActivity.java
@@ -27,8 +27,8 @@
 import org.asdtm.goodweather.utils.CustomValueFormatter;
 import org.asdtm.goodweather.utils.LanguageUtil;
 import org.asdtm.goodweather.utils.PreferenceUtil;
-import org.asdtm.goodweather.utils.XAxisValueFormatter;
 import org.asdtm.goodweather.utils.Utils;
+import org.asdtm.goodweather.utils.XAxisValueFormatter;
 import org.asdtm.goodweather.utils.YAxisValueFormatter;
 import org.json.JSONArray;
 import org.json.JSONException;
@@ -50,8 +50,8 @@
 
 public class GraphsActivity extends BaseActivity {
 
-    private ConnectionDetector mConnectionDetector;
     public List<WeatherForecast> mForecastList;
+    private ConnectionDetector mConnectionDetector;
     private LineChart mTemperatureChart;
     private LineChart mWindChart;
     private LineChart mRainChart;
@@ -116,7 +116,7 @@ public void handleMessage(android.os.Message msg) {
     }
 
     private void setTemperatureChart() {
-        mTemperatureChart.setDescription("");
+        //mTemperatureChart.setDescription("");
         mTemperatureChart.setDrawGridBackground(false);
         mTemperatureChart.setTouchEnabled(true);
         mTemperatureChart.setDragEnabled(true);
@@ -185,7 +185,7 @@ private void setTemperatureChart() {
     }
     
     private void setWindChart() {
-        mWindChart.setDescription("");
+        //mWindChart.setDescription("");
         mWindChart.setDrawGridBackground(false);
         mWindChart.setTouchEnabled(true);
         mWindChart.setDragEnabled(true);
@@ -254,7 +254,7 @@ private void setWindChart() {
     }
 
     private void setRainChart() {
-        mRainChart.setDescription("");
+        //mRainChart.setDescription("");
         mRainChart.setDrawGridBackground(false);
         mRainChart.setTouchEnabled(true);
         mRainChart.setDragEnabled(true);
@@ -323,7 +323,7 @@ private void setRainChart() {
     }
 
     private void setSnowChart() {
-        mSnowChart.setDescription("");
+        //mSnowChart.setDescription("");
         mSnowChart.setDrawGridBackground(false);
         mSnowChart.setTouchEnabled(true);
         mSnowChart.setDragEnabled(true);
diff --git a/app/src/main/java/org/asdtm/goodweather/MainActivity.java b/app/src/main/java/org/asdtm/goodweather/MainActivity.java
index 3f2dfd54..ace21f8f 100644
--- a/app/src/main/java/org/asdtm/goodweather/MainActivity.java
+++ b/app/src/main/java/org/asdtm/goodweather/MainActivity.java
@@ -57,7 +57,12 @@ public class MainActivity extends BaseActivity implements AppBarLayout.OnOffsetC
     private static final String TAG = "MainActivity";
 
     private static final long LOCATION_TIMEOUT_IN_MS = 30000L;
-
+    private static final int REQUEST_LOCATION = 0;
+    public static Weather mWeather;
+    public static CitySearch mCitySearch;
+    private static String[] PERMISSIONS_LOCATION = {Manifest.permission.ACCESS_COARSE_LOCATION,
+            Manifest.permission.ACCESS_FINE_LOCATION};
+    public Context storedContext;
     private TextView mIconWeatherView;
     private TextView mTemperatureView;
     private TextView mDescriptionView;
@@ -75,7 +80,6 @@ public class MainActivity extends BaseActivity implements AppBarLayout.OnOffsetC
     private TextView mIconCloudinessView;
     private TextView mIconSunriseView;
     private TextView mIconSunsetView;
-
     private ConnectionDetector connectionDetector;
     private Boolean isNetworkAvailable;
     private ProgressDialog mProgressDialog;
@@ -83,7 +87,6 @@ public class MainActivity extends BaseActivity implements AppBarLayout.OnOffsetC
     private SwipeRefreshLayout mSwipeRefresh;
     private Menu mToolbarMenu;
     private BroadcastReceiver mWeatherUpdateReceiver;
-
     private String mSpeedScale;
     private String mIconWind;
     private String mIconHumidity;
@@ -93,18 +96,108 @@ public class MainActivity extends BaseActivity implements AppBarLayout.OnOffsetC
     private String mIconSunset;
     private String mPercentSign;
     private String mPressureMeasurement;
-
     private SharedPreferences mPrefWeather;
+    FloatingActionButton.OnClickListener fabListener = new View.OnClickListener() {
+        @Override
+        public void onClick(View view) {
+            String temperatureScale = Utils.getTemperatureScale(MainActivity.this);
+            mSpeedScale = Utils.getSpeedScale(MainActivity.this);
+            String weather;
+            String temperature;
+            String description;
+            String wind;
+            String sunrise;
+            String sunset;
+            temperature = String.format(Locale.getDefault(), "%.0f", mPrefWeather.getFloat(Constants.WEATHER_DATA_TEMPERATURE, 0));
+            description = mPrefWeather.getString(Constants.WEATHER_DATA_DESCRIPTION,
+                    "clear sky");
+            wind = String.format(Locale.getDefault(), "%.1f",
+                    mPrefWeather.getFloat(Constants.WEATHER_DATA_WIND_SPEED, 0));
+            sunrise = Utils.unixTimeToFormatTime(MainActivity.this, mPrefWeather
+                    .getLong(Constants.WEATHER_DATA_SUNRISE, -1));
+            sunset = Utils.unixTimeToFormatTime(MainActivity.this, mPrefWeather
+                    .getLong(Constants.WEATHER_DATA_SUNSET, -1));
+            weather = "City: " + Utils.getCityAndCountry(storedContext) +
+                    "\nTemperature: " + temperature + temperatureScale +
+                    "\nDescription: " + description +
+                    "\nWind: " + wind + " " + mSpeedScale +
+                    "\nSunrise: " + sunrise +
+                    "\nSunset: " + sunset;
+            Intent shareIntent = new Intent(Intent.ACTION_SEND);
+            shareIntent.setType("text/plain");
+            shareIntent.putExtra(Intent.EXTRA_TEXT, weather);
+            shareIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            try {
+                startActivity(Intent.createChooser(shareIntent, "Share Weather"));
+            } catch (ActivityNotFoundException e) {
+                Toast.makeText(MainActivity.this,
+                        "Communication app not found",
+                        Toast.LENGTH_LONG).show();
+            }
+        }
+    };
     private SharedPreferences mSharedPreferences;
+    private LocationListener mLocationListener = new LocationListener() {
+        @Override
+        public void onLocationChanged(Location location) {
+            mProgressDialog.cancel();
+            String latitude = String.format("%1$.2f", location.getLatitude());
+            String longitude = String.format("%1$.2f", location.getLongitude());
 
-    public static Weather mWeather;
-    public static CitySearch mCitySearch;
+            if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
+                locationManager.removeUpdates(mLocationListener);
+            }
 
-    private static final int REQUEST_LOCATION = 0;
-    private static String[] PERMISSIONS_LOCATION = {Manifest.permission.ACCESS_COARSE_LOCATION,
-            Manifest.permission.ACCESS_FINE_LOCATION};
+            connectionDetector = new ConnectionDetector(MainActivity.this);
+            isNetworkAvailable = connectionDetector.isNetworkAvailableAndConnected();
 
-    public Context storedContext;
+            mSharedPreferences = getSharedPreferences(Constants.APP_SETTINGS_NAME,
+                    Context.MODE_PRIVATE);
+            SharedPreferences.Editor editor = mSharedPreferences.edit();
+            editor.putString(Constants.APP_SETTINGS_LATITUDE, latitude);
+            editor.putString(Constants.APP_SETTINGS_LONGITUDE, longitude);
+            getAndWriteAddressFromGeocoder(latitude, longitude, editor);
+            editor.apply();
+
+            if (isNetworkAvailable) {
+                startService(new Intent(MainActivity.this, CurrentWeatherService.class));
+                sendBroadcast(new Intent(Constants.ACTION_FORCED_APPWIDGET_UPDATE));
+            } else {
+                Toast.makeText(MainActivity.this, R.string.connection_not_found, Toast.LENGTH_SHORT)
+                        .show();
+            }
+        }
+
+        @Override
+        public void onStatusChanged(String provider, int status, Bundle extras) {
+
+        }
+
+        @Override
+        public void onProviderEnabled(String provider) {
+
+        }
+
+        @Override
+        public void onProviderDisabled(String provider) {
+
+        }
+    };
+    private SwipeRefreshLayout.OnRefreshListener swipeRefreshListener =
+            new SwipeRefreshLayout.OnRefreshListener() {
+                @Override
+                public void onRefresh() {
+                    isNetworkAvailable = connectionDetector.isNetworkAvailableAndConnected();
+                    if (isNetworkAvailable) {
+                        startService(new Intent(MainActivity.this, CurrentWeatherService.class));
+                    } else {
+                        Toast.makeText(MainActivity.this,
+                                R.string.connection_not_found,
+                                Toast.LENGTH_SHORT).show();
+                        mSwipeRefresh.setRefreshing(false);
+                    }
+                }
+            };
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -246,53 +339,6 @@ public boolean onOptionsItemSelected(MenuItem item) {
         return super.onOptionsItemSelected(item);
     }
 
-    private LocationListener mLocationListener = new LocationListener() {
-        @Override
-        public void onLocationChanged(Location location) {
-            mProgressDialog.cancel();
-            String latitude = String.format("%1$.2f", location.getLatitude());
-            String longitude = String.format("%1$.2f", location.getLongitude());
-
-            if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
-                locationManager.removeUpdates(mLocationListener);
-            }
-
-            connectionDetector = new ConnectionDetector(MainActivity.this);
-            isNetworkAvailable = connectionDetector.isNetworkAvailableAndConnected();
-
-            mSharedPreferences = getSharedPreferences(Constants.APP_SETTINGS_NAME,
-                    Context.MODE_PRIVATE);
-            SharedPreferences.Editor editor = mSharedPreferences.edit();
-            editor.putString(Constants.APP_SETTINGS_LATITUDE, latitude);
-            editor.putString(Constants.APP_SETTINGS_LONGITUDE, longitude);
-            getAndWriteAddressFromGeocoder(latitude, longitude, editor);
-            editor.apply();
-
-            if (isNetworkAvailable) {
-                startService(new Intent(MainActivity.this, CurrentWeatherService.class));
-                sendBroadcast(new Intent(Constants.ACTION_FORCED_APPWIDGET_UPDATE));
-            } else {
-                Toast.makeText(MainActivity.this, R.string.connection_not_found, Toast.LENGTH_SHORT)
-                        .show();
-            }
-        }
-
-        @Override
-        public void onStatusChanged(String provider, int status, Bundle extras) {
-
-        }
-
-        @Override
-        public void onProviderEnabled(String provider) {
-
-        }
-
-        @Override
-        public void onProviderDisabled(String provider) {
-
-        }
-    };
-
     private void getAndWriteAddressFromGeocoder(String latitude, String longitude, SharedPreferences.Editor editor) {
         Geocoder geocoder = new Geocoder(this, Locale.getDefault());
         try {
@@ -308,22 +354,6 @@ private void getAndWriteAddressFromGeocoder(String latitude, String longitude, S
         }
     }
 
-    private SwipeRefreshLayout.OnRefreshListener swipeRefreshListener =
-            new SwipeRefreshLayout.OnRefreshListener() {
-                @Override
-                public void onRefresh() {
-                    isNetworkAvailable = connectionDetector.isNetworkAvailableAndConnected();
-                    if (isNetworkAvailable) {
-                        startService(new Intent(MainActivity.this, CurrentWeatherService.class));
-                    } else {
-                        Toast.makeText(MainActivity.this,
-                                R.string.connection_not_found,
-                                Toast.LENGTH_SHORT).show();
-                        mSwipeRefresh.setRefreshing(false);
-                    }
-                }
-            };
-
     private void preLoadWeather() {
         mSpeedScale = Utils.getSpeedScale(this);
         String lastUpdate = Utils.setLastUpdateTime(this,
@@ -468,48 +498,13 @@ public void onReceive(Context context, Intent intent) {
 
     @Override
     public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
-        mSwipeRefresh.setEnabled(verticalOffset == 0);
-    }
-
-    FloatingActionButton.OnClickListener fabListener = new View.OnClickListener() {
-        @Override
-        public void onClick(View view) {
-            String temperatureScale = Utils.getTemperatureScale(MainActivity.this);
-            mSpeedScale = Utils.getSpeedScale(MainActivity.this);
-            String weather;
-            String temperature;
-            String description;
-            String wind;
-            String sunrise;
-            String sunset;
-            temperature = String.format(Locale.getDefault(), "%.0f", mPrefWeather.getFloat(Constants.WEATHER_DATA_TEMPERATURE, 0));
-            description = mPrefWeather.getString(Constants.WEATHER_DATA_DESCRIPTION,
-                    "clear sky");
-            wind = String.format(Locale.getDefault(), "%.1f",
-                    mPrefWeather.getFloat(Constants.WEATHER_DATA_WIND_SPEED, 0));
-            sunrise = Utils.unixTimeToFormatTime(MainActivity.this, mPrefWeather
-                    .getLong(Constants.WEATHER_DATA_SUNRISE, -1));
-            sunset = Utils.unixTimeToFormatTime(MainActivity.this, mPrefWeather
-                    .getLong(Constants.WEATHER_DATA_SUNSET, -1));
-            weather = "City: " + Utils.getCityAndCountry(storedContext) +
-                    "\nTemperature: " + temperature + temperatureScale +
-                    "\nDescription: " + description +
-                    "\nWind: " + wind + " " + mSpeedScale +
-                    "\nSunrise: " + sunrise +
-                    "\nSunset: " + sunset;
-            Intent shareIntent = new Intent(Intent.ACTION_SEND);
-            shareIntent.setType("text/plain");
-            shareIntent.putExtra(Intent.EXTRA_TEXT, weather);
-            shareIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-            try {
-                startActivity(Intent.createChooser(shareIntent, "Share Weather"));
-            } catch (ActivityNotFoundException e) {
-                Toast.makeText(MainActivity.this,
-                        "Communication app not found",
-                        Toast.LENGTH_LONG).show();
-            }
+        if (verticalOffset == 0) {
+            mSwipeRefresh.setEnabled(true);
+        } else {
+            mSwipeRefresh.setRefreshing(false);
+            mSwipeRefresh.setEnabled(false);
         }
-    };
+    }
 
     private void detectLocation() {
         boolean isGPSEnabled = locationManager.getAllProviders().contains(LocationManager.GPS_PROVIDER)
diff --git a/app/src/main/java/org/asdtm/goodweather/utils/CustomValueFormatter.java b/app/src/main/java/org/asdtm/goodweather/utils/CustomValueFormatter.java
index ce5c98c9..de87051f 100644
--- a/app/src/main/java/org/asdtm/goodweather/utils/CustomValueFormatter.java
+++ b/app/src/main/java/org/asdtm/goodweather/utils/CustomValueFormatter.java
@@ -1,12 +1,12 @@
 package org.asdtm.goodweather.utils;
 
 import com.github.mikephil.charting.data.Entry;
-import com.github.mikephil.charting.formatter.ValueFormatter;
+import com.github.mikephil.charting.formatter.IValueFormatter;
 import com.github.mikephil.charting.utils.ViewPortHandler;
 
 import java.text.DecimalFormat;
 
-public class CustomValueFormatter implements ValueFormatter {
+public class CustomValueFormatter implements IValueFormatter {
 
     private DecimalFormat mFormat;
 
diff --git a/app/src/main/java/org/asdtm/goodweather/utils/LanguageUtil.java b/app/src/main/java/org/asdtm/goodweather/utils/LanguageUtil.java
index 542bd94c..cf9fc457 100644
--- a/app/src/main/java/org/asdtm/goodweather/utils/LanguageUtil.java
+++ b/app/src/main/java/org/asdtm/goodweather/utils/LanguageUtil.java
@@ -22,7 +22,7 @@ public static void setLanguage(final ContextWrapper contextWrapper, String local
         if (TextUtils.isEmpty(locale)) {
             sLocale = Locale.getDefault();
         } else {
-            String[] localeParts = locale.split("_");
+            String[] localeParts = locale.split("-r");
             if (localeParts.length > 1) {
                 sLocale = new Locale(localeParts[0], localeParts[1]);
             } else {
@@ -58,8 +58,8 @@ public static String getLanguageName(String locale) {
         if (TextUtils.isEmpty(locale)) {
             locale = Locale.getDefault().toString();
         }
-        if (locale.contains("_")) {
-            return locale.split("_")[0];
+        if (locale.contains("-")) {
+            return locale.split("-")[0];
         }
         return locale;
     }
diff --git a/app/src/main/java/org/asdtm/goodweather/utils/XAxisValueFormatter.java b/app/src/main/java/org/asdtm/goodweather/utils/XAxisValueFormatter.java
index 8a70a13e..645adad9 100644
--- a/app/src/main/java/org/asdtm/goodweather/utils/XAxisValueFormatter.java
+++ b/app/src/main/java/org/asdtm/goodweather/utils/XAxisValueFormatter.java
@@ -1,9 +1,9 @@
 package org.asdtm.goodweather.utils;
 
 import com.github.mikephil.charting.components.AxisBase;
-import com.github.mikephil.charting.formatter.AxisValueFormatter;
+import com.github.mikephil.charting.formatter.IAxisValueFormatter;
 
-public class XAxisValueFormatter implements AxisValueFormatter {
+public class XAxisValueFormatter implements IAxisValueFormatter {
 
     private String[] mValues;
 
@@ -16,7 +16,6 @@ public String getFormattedValue(float value, AxisBase axis) {
         return mValues[(int) value];
     }
 
-    @Override
     public int getDecimalDigits() {
         return 0;
     }
diff --git a/app/src/main/java/org/asdtm/goodweather/utils/YAxisValueFormatter.java b/app/src/main/java/org/asdtm/goodweather/utils/YAxisValueFormatter.java
index aec6772b..64440b84 100644
--- a/app/src/main/java/org/asdtm/goodweather/utils/YAxisValueFormatter.java
+++ b/app/src/main/java/org/asdtm/goodweather/utils/YAxisValueFormatter.java
@@ -1,11 +1,11 @@
 package org.asdtm.goodweather.utils;
 
 import com.github.mikephil.charting.components.AxisBase;
-import com.github.mikephil.charting.formatter.AxisValueFormatter;
+import com.github.mikephil.charting.formatter.IAxisValueFormatter;
 
 import java.text.DecimalFormat;
 
-public class YAxisValueFormatter implements AxisValueFormatter {
+public class YAxisValueFormatter implements IAxisValueFormatter {
 
     private DecimalFormat mFormat;
 
@@ -18,7 +18,6 @@ public String getFormattedValue(float value, AxisBase axis) {
         return mFormat.format(value);
     }
 
-    @Override
     public int getDecimalDigits() {
         return 1;
     }
diff --git a/app/src/main/res/values/arrays.xml b/app/src/main/res/values/arrays.xml
index 068d1db0..2a794571 100644
--- a/app/src/main/res/values/arrays.xml
+++ b/app/src/main/res/values/arrays.xml
@@ -87,6 +87,7 @@
         <item name="basque">Euskara (Basque)</item>
         <item name="belarusian">Беларуская (Belarusian)</item>
         <item name="catalan">Català (Catalan)</item>
+        <item name="chinese">中文 (Chinese)</item>
         <item name="czech">Čeština (Czech)</item>
         <item name="french">Français (French)</item>
         <item name="italian">Italiano (Italian)</item>
@@ -103,6 +104,7 @@
         <item name="basque">eu</item>
         <item name="belarusian">be</item>
         <item name="catalan">ca</item>
+        <item name="chinese">zh-rCN</item>
         <item name="czech">cs</item>
         <item name="french">fr</item>
         <item name="italian">it</item>
diff --git a/build.gradle b/build.gradle
index f1bed3ee..e5340eef 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,10 +2,11 @@
 
 buildscript {
     repositories {
+        google()
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.1'
+        classpath 'com.android.tools.build:gradle:3.0.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -14,6 +15,7 @@ buildscript {
 
 allprojects {
     repositories {
+        google()
         jcenter()
         maven { url "https://jitpack.io" }
     }
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 0bb10c8b..93d1b921 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Fri Mar 03 15:30:50 MSK 2017
+#Tue Nov 28 21:01:56 CST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip