diff --git a/build.gradle b/build.gradle
index 32022a9..8627392 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,10 +1,7 @@
 buildscript {
     repositories {
         mavenCentral()
-        maven {
-            url 'https://maven.google.com/'
-            name 'Google'
-        }
+        jcenter()
         google()
     }
 
@@ -19,6 +16,7 @@ apply plugin: 'com.android.application'
 
 repositories {
     mavenCentral()
+    jcenter()
     maven {
         url "http://4thline.org/m2"
     }
@@ -37,6 +35,7 @@ dependencies {
     implementation 'org.eclipse.jetty:jetty-servlet:8.1.8.v20121106'
     implementation 'org.eclipse.jetty:jetty-client:8.1.8.v20121106'
     implementation 'org.slf4j:slf4j-jdk14:1.6.1'
+    implementation 'org.jetbrains.trove4j:trove4j:20160824'
 }
 
 android {