diff --git a/ApiDemos/java/app/build.gradle b/ApiDemos/java/app/build.gradle
index 9d7a5b66..eb37a983 100644
--- a/ApiDemos/java/app/build.gradle
+++ b/ApiDemos/java/app/build.gradle
@@ -3,7 +3,7 @@ apply plugin: 'project-report'
 
 android {
     compileSdkVersion 27
-    buildToolsVersion '27.0.2'
+    buildToolsVersion '28.0.3'
 
     defaultConfig {
         applicationId "com.example.mapdemo"
@@ -21,7 +21,7 @@ android {
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
     testImplementation 'junit:junit:4.12'
     implementation 'com.android.support:appcompat-v7:27.0.2'
     implementation 'com.google.android.gms:play-services-maps:12.0.1'
diff --git a/ApiDemos/java/build.gradle b/ApiDemos/java/build.gradle
index 34e457f6..9363c7d9 100644
--- a/ApiDemos/java/build.gradle
+++ b/ApiDemos/java/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        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
diff --git a/ApiDemos/java/gradle/wrapper/gradle-wrapper.properties b/ApiDemos/java/gradle/wrapper/gradle-wrapper.properties
index 6f775bb9..1fb5cb46 100644
--- a/ApiDemos/java/gradle/wrapper/gradle-wrapper.properties
+++ b/ApiDemos/java/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Thu Jan 18 10:58:29 AEDT 2018
+#Wed Apr 17 15:18:46 PDT 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/ApiDemos/kotlin/build.gradle b/ApiDemos/kotlin/build.gradle
index 0374f436..ea89d913 100644
--- a/ApiDemos/kotlin/build.gradle
+++ b/ApiDemos/kotlin/build.gradle
@@ -1,13 +1,13 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.2.10'
+    ext.kotlin_version = '1.2.51'
     repositories {
         google()
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.2.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
diff --git a/ApiDemos/kotlin/gradle/wrapper/gradle-wrapper.properties b/ApiDemos/kotlin/gradle/wrapper/gradle-wrapper.properties
index 03a13cbd..8d5436ab 100644
--- a/ApiDemos/kotlin/gradle/wrapper/gradle-wrapper.properties
+++ b/ApiDemos/kotlin/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Mon Jan 08 15:42:42 AEDT 2018
+#Wed Apr 17 15:19:56 PDT 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip