diff --git a/build.gradle b/build.gradle
index 0271883..480b5c8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.0'
+        classpath 'com.android.tools.build:gradle:2.3.3'
         /*
         classpath "com.jfrog.bintray.gradle:gradle-bintray-plugin:1.7.3"
         // The following dependency has been replaced with newer version according to https://github.com/dcendents/android-maven-plugin
@@ -20,5 +20,8 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url "https://maven.google.com"
+        }
     }
 }
\ No newline at end of file
diff --git a/dfu/build.gradle b/dfu/build.gradle
index 1d6c8ee..416e926 100644
--- a/dfu/build.gradle
+++ b/dfu/build.gradle
@@ -41,7 +41,7 @@ ext {
 
 android {
     compileSdkVersion 25
-    buildToolsVersion '25.0.1'
+    buildToolsVersion '25.0.3'
 
     defaultConfig {
         minSdkVersion 18
@@ -59,8 +59,8 @@ android {
 
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
-    compile 'com.android.support:support-v4:25.0.1'
-    compile 'com.google.code.gson:gson:2.5'
+    compile 'com.android.support:support-v4:25.4.0'
+    compile 'com.google.code.gson:gson:2.7'
 }
 /*