diff --git a/source-code/build.gradle b/source-code/build.gradle
index f3f75cbd..2e635a77 100644
--- a/source-code/build.gradle
+++ b/source-code/build.gradle
@@ -2,11 +2,11 @@
 
 buildscript {
     repositories {
+        google()
         jcenter()
-        mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.2'
+        classpath 'com.android.tools.build:gradle:3.0.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -15,6 +15,7 @@ buildscript {
 
 allprojects {
     repositories {
+        google()
         maven { url "http://dl.bintray.com/populov/maven" }
         jcenter()
         mavenCentral()
diff --git a/source-code/gradle.properties b/source-code/gradle.properties
index 5b45bc44..d2322eb0 100644
--- a/source-code/gradle.properties
+++ b/source-code/gradle.properties
@@ -15,4 +15,5 @@
 # When configured, Gradle will run in incubating parallel mode.
 # This option should only be used with decoupled projects. More details, visit
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
-# org.gradle.parallel=true
\ No newline at end of file
+# org.gradle.parallel=true
+android.enableAapt2 = false
\ No newline at end of file
diff --git a/source-code/gradle/wrapper/gradle-wrapper.properties b/source-code/gradle/wrapper/gradle-wrapper.properties
index f4b6e795..5471201b 100644
--- a/source-code/gradle/wrapper/gradle-wrapper.properties
+++ b/source-code/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sun Oct 09 10:56:58 IST 2016
+#Thu Jan 04 11:36:03 IST 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-4.1-all.zip