diff --git a/build.gradle b/build.gradle
index f12defe..6e591e1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,6 +5,10 @@ buildscript {
 
     repositories {
         jcenter()
+        maven {
+            url 'https://maven.google.com/'
+            name 'Google'
+        }
     }
 
     dependencies {
@@ -21,6 +25,10 @@ allprojects {
         maven {
             url "https://maven.google.com"
         }
+        maven {
+            url 'https://maven.google.com/'
+            name 'Google'
+        }
     }
 }
 
diff --git a/dependencies.gradle b/dependencies.gradle
index bd47052..2cbcbad 100644
--- a/dependencies.gradle
+++ b/dependencies.gradle
@@ -1,12 +1,12 @@
 ext.versions = [
         minSdk             : 16,
-        targetSdk          : 23,
-        compileSdk         : 23,
-        buildTools         : '23.0.3',
+        targetSdk          : 27,
+        compileSdk         : 27,
+        buildTools         : '27.0.3',
         androidGradlePlugin: '2.2.1',
 
         // Dependencies
-        supportLibs        : '23.1.1',
+        supportLibs        : '27.0.2',
         rxJava             : '2.1.3',
         rxAndroid          : '2.0.1',
 
diff --git a/vangogh-sample/build.gradle b/vangogh-sample/build.gradle
index 7cf3464..a397774 100644
--- a/vangogh-sample/build.gradle
+++ b/vangogh-sample/build.gradle
@@ -1,14 +1,14 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 26
-    buildToolsVersion "27.0.1"
+    compileSdkVersion 27
+    buildToolsVersion "27.0.3"
 
 
     defaultConfig {
         applicationId "com.example.vangogh"
         minSdkVersion 15
-        targetSdkVersion 26
+        targetSdkVersion 27
         versionCode 1
         versionName "1.0"
 
@@ -27,7 +27,7 @@ android {
 
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
-    compile 'com.android.support:appcompat-v7:26.1.0'
+    compile 'com.android.support:appcompat-v7:27.0.2'
     compile 'com.android.support.constraint:constraint-layout:1.0.2'
     testCompile 'junit:junit:4.12'
     androidTestCompile('com.android.support.test.espresso:espresso-core:3.0.1', {