diff --git a/.travis.yml b/.travis.yml
index 6b9dd730b..ad85789a8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ install:
 - echo y | android update sdk -u -a -t tools
 - echo y | android update sdk -u -a -t platform-tools
 - echo y | android update sdk -u -a -t build-tools-26.0.2
-- echo y | android update sdk -u -a -t android-25
+- echo y | android update sdk -u -a -t android-27
 - echo y | android update sdk -u -a -t extra-google-m2repository
 - echo y | android update sdk -u -a -t extra-android-m2repository
 
diff --git a/app/build.gradle b/app/build.gradle
index b95a32ee7..a22166375 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,12 +7,12 @@ findbugs {
 }
 
 android {
-    compileSdkVersion 25
+    compileSdkVersion 27
 
     defaultConfig {
         applicationId "protect.card_locker"
         minSdkVersion 17
-        targetSdkVersion 25
+        targetSdkVersion 27
         versionCode 17
         versionName "0.16"
     }
@@ -43,8 +43,8 @@ android {
 
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
-    compile 'com.android.support:appcompat-v7:25.3.1'
-    compile 'com.android.support:design:25.3.1'
+    compile 'com.android.support:appcompat-v7:27.0.2'
+    compile 'com.android.support:design:27.0.2'
     compile 'com.journeyapps:zxing-android-embedded:3.5.0@aar'
     compile 'com.google.zxing:core:3.3.0'
     compile 'org.apache.commons:commons-csv:1.2'
diff --git a/build.gradle b/build.gradle
index 2c616761f..74f0fa91b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -19,6 +19,7 @@ allprojects {
     repositories {
         jcenter()
         maven { url 'https://jitpack.io' }
+        google()
     }
 }