diff --git a/app/build.gradle b/app/build.gradle
index 98d5b869..5f97607f 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -4,7 +4,7 @@ apply plugin: 'kotlin-android-extensions'
 
 android {
     compileSdkVersion 28
-    buildToolsVersion "28.0.2"
+    buildToolsVersion "28.0.3"
 
     defaultConfig {
         applicationId "com.simplemobiletools.contacts"
diff --git a/build.gradle b/build.gradle
index 2d064442..76ac6173 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.2.70'
+    ext.kotlin_version = '1.2.71'
 
     repositories {
         google()
@@ -9,7 +9,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.4'
+        classpath 'com.android.tools.build:gradle:3.2.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 7d73f3c2..503fd67b 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sun Dec 10 10:08:39 CET 2017
+#Tue Sep 25 13:09:34 CEST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip