diff --git a/dfu/build.gradle b/dfu/build.gradle
index fbbbbae..fab5139 100644
--- a/dfu/build.gradle
+++ b/dfu/build.gradle
@@ -8,7 +8,7 @@ ext {
 
 android {
     compileSdkVersion 22
-    buildToolsVersion "21.1.2"
+    buildToolsVersion '22.0.0'
 
     defaultConfig {
         minSdkVersion 18