diff --git a/app/build.gradle b/app/build.gradle
index c3c3570..a7d2fbc 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -3,15 +3,16 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 
 android {
-    compileSdkVersion 26
-    buildToolsVersion "26.0.2"
+    compileSdkVersion 27
+    buildToolsVersion "27.0.1"
 
     defaultConfig {
         applicationId "com.simplemobiletools.thankyou"
         minSdkVersion 16
-        targetSdkVersion 26
+        targetSdkVersion 27
         versionCode 3
         versionName "2.1.0"
+        setProperty("archivesBaseName", "thank-you")
     }
 
     signingConfigs {
@@ -37,23 +38,10 @@ android {
 }
 
 dependencies {
-    compile 'com.simplemobiletools:commons:2.36.0'
-    compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+    compile 'com.simplemobiletools:commons:2.41.8'
 }
 
-buildscript {
-    ext.kotlin_version = '1.1.51'
-    repositories {
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-        classpath "org.jetbrains.kotlin:kotlin-android-extensions:$kotlin_version"
-    }
-}
-
-def Properties props = new Properties()
+Properties props = new Properties()
 def propFile = new File('signing.properties')
 if (propFile.canRead()) {
     props.load(new FileInputStream(propFile))
diff --git a/app/src/main/kotlin/com/simplemobiletools/thankyou/extensions/Context.kt b/app/src/main/kotlin/com/simplemobiletools/thankyou/extensions/Context.kt
index 2a4d993..a8ebe9a 100644
--- a/app/src/main/kotlin/com/simplemobiletools/thankyou/extensions/Context.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/thankyou/extensions/Context.kt
@@ -3,4 +3,4 @@ package com.simplemobiletools.thankyou.extensions
 import android.content.Context
 import com.simplemobiletools.thankyou.helpers.Config
 
-val Context.config: Config get() = Config.newInstance(this)
+val Context.config: Config get() = Config.newInstance(applicationContext)
diff --git a/app/src/main/res/values/style.xml b/app/src/main/res/values/style.xml
index 46e5bce..0be5041 100644
--- a/app/src/main/res/values/style.xml
+++ b/app/src/main/res/values/style.xml
@@ -1,7 +1,5 @@
 <resources>
 
-    <style name="AppTheme" parent="AppTheme.Base">
-
-    </style>
+    <style name="AppTheme" parent="AppTheme.Base"/>
 
 </resources>
diff --git a/build.gradle b/build.gradle
index 633d203..1323953 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,11 +1,16 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
+    ext.kotlin_version = '1.1.61'
+
     repositories {
         jcenter()
+        google()
     }
+
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -15,8 +20,8 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        google()
         maven { url "https://jitpack.io" }
-        maven { url "https://maven.google.com" }
     }
 }
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index b214470..681f477 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Thu Oct 26 17:27:58 CEST 2017
+#Tue Nov 28 19:02:30 CET 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