diff --git a/.travis.yml b/.travis.yml
index afdeb5215e..51a6c391e9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,7 +19,7 @@ android:
     - tools # https://github.com/travis-ci/travis-ci/issues/6059
     - platform-tools
     - android-25
-    - build-tools-25.0.2
+    - build-tools-26.0.0
 
 before_script:
   - export TERM=dumb
diff --git a/examples/gradle/build.gradle b/examples/gradle/build.gradle
index 9d841e4aa2..ebc963bb26 100644
--- a/examples/gradle/build.gradle
+++ b/examples/gradle/build.gradle
@@ -1,16 +1,16 @@
 buildscript {
     repositories {
-        mavenCentral()
+        jcenter()
     }
     dependencies {
         // replace with the current version of the Android plugin
-        classpath "com.android.tools.build:gradle:2.3.0"
+        classpath "com.android.tools.build:gradle:2.3.3"
     }
 }
 
 repositories {
-    mavenCentral()
     mavenLocal()
+    mavenCentral()
 }
 
 apply plugin: "com.android.application"
@@ -23,7 +23,7 @@ dependencies {
 
 android {
     compileSdkVersion 25
-    buildToolsVersion "25.0.2"
+    buildToolsVersion "26.0.0"
 
     defaultConfig {
         minSdkVersion 9
@@ -32,7 +32,7 @@ android {
         // If you have different applicationIds for buildTypes or productFlavors uncomment this block.
         //javaCompileOptions {
         //    annotationProcessorOptions {
-        //        arguments = ['resourcePackageName': android.defaultConfig.applicationId]
+        //        arguments = ['resourcePackageName': "org.androidannotations.sample"]
         //    }
         //}
     }
diff --git a/examples/gradle/gradle/wrapper/gradle-wrapper.properties b/examples/gradle/gradle/wrapper/gradle-wrapper.properties
index 071a4ff67c..82c4cdcd79 100644
--- a/examples/gradle/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/gradle/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.4.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.0.1-all.zip
diff --git a/examples/kotlin/build.gradle b/examples/kotlin/build.gradle
index 125c2caaaa..3a26b9971f 100644
--- a/examples/kotlin/build.gradle
+++ b/examples/kotlin/build.gradle
@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = "1.1.0"
+    ext.kotlin_version = "1.1.3-2"
 
     repositories {
         jcenter()
@@ -22,7 +22,7 @@ apply plugin: "kotlin-kapt"
 
 android {
     compileSdkVersion 25
-    buildToolsVersion "25.0.2"
+    buildToolsVersion "26.0.0"
 
     defaultConfig {
         minSdkVersion 9
@@ -33,11 +33,12 @@ android {
     }
 }
 
-kapt {
-    arguments {
-        arg("androidManifestFile", variant.outputs[0].processResourcesTask.manifestFile)
-    }
-}
+// If you have different applicationIds for buildTypes or productFlavors uncomment this block.
+//kapt {
+//    arguments {
+//        arg("resourcePackageName", "org.androidannotations.gradle")
+//    }
+//}
 
 def AAVersion = "4.4.0-SNAPSHOT" // change this to your desired version, for example the latest stable: 4.3.1
 
diff --git a/examples/kotlin/gradle/wrapper/gradle-wrapper.properties b/examples/kotlin/gradle/wrapper/gradle-wrapper.properties
index 031d6c599f..1e6c29f114 100644
--- a/examples/kotlin/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/kotlin/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.4.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.0.1-all.zip