diff --git a/.travis.yml b/.travis.yml
index 690c5bd..0ecb446 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,7 @@
 language: android
 
-jdk: oraclejdk7
+jdk:
+  - oraclejdk8
 
 android:
   components:
diff --git a/build.gradle b/build.gradle
index 08e9947..4320ccc 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,9 +3,10 @@
 buildscript {
     repositories {
         mavenCentral()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.3'
+        classpath 'com.android.tools.build:gradle:3.2.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -18,6 +19,7 @@ allprojects {
 
     repositories {
         mavenCentral()
+        google()
         maven {
             url "https://oss.sonatype.org/content/repositories/snapshots/"
         }
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 513255c..12e198a 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sun Nov 27 14:28:16 IST 2016
+#Wed Dec 19 17:42:19 JST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/saripaar-tests/build.gradle b/saripaar-tests/build.gradle
index 043be5f..129071e 100644
--- a/saripaar-tests/build.gradle
+++ b/saripaar-tests/build.gradle
@@ -2,12 +2,12 @@ apply plugin: 'com.android.application'
 
 android {
     compileSdkVersion Integer.parseInt(project.ANDROID_BUILD_SDK_VERSION)
-    buildToolsVersion project.ANDROID_BUILD_TOOLS_VERSION
+    buildToolsVersion '28.0.3'
 
     defaultConfig {
         applicationId "com.mobsandgeeks.saripaar.tests"
         minSdkVersion 14
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
diff --git a/saripaar/build.gradle b/saripaar/build.gradle
index a0f07ab..56208fe 100644
--- a/saripaar/build.gradle
+++ b/saripaar/build.gradle
@@ -5,14 +5,14 @@ apply from: '../config/quality.gradle'
 
 android {
     compileSdkVersion Integer.parseInt(project.ANDROID_BUILD_SDK_VERSION)
-    buildToolsVersion project.ANDROID_BUILD_TOOLS_VERSION
+    buildToolsVersion '28.0.3'
 
     lintOptions {
         abortOnError false
     }
     defaultConfig {
         minSdkVersion 8
-        targetSdkVersion 25
+        targetSdkVersion 26
     }
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_6