diff --git a/WordPressUtils/build.gradle b/WordPressUtils/build.gradle
index 1934595dda00..af1b38888d38 100644
--- a/WordPressUtils/build.gradle
+++ b/WordPressUtils/build.gradle
@@ -26,7 +26,7 @@ android {
     publishNonDefault true
 
     compileSdkVersion 19
-    buildToolsVersion "19.1.0"
+    buildToolsVersion "21.1.1"
 
     defaultConfig {
         applicationId "org.wordpress.android.util"