docs(android): Build Tools 28.0.3 (#1081)

diff --git a/www/docs/en/dev/guide/platforms/android/index.md b/www/docs/en/dev/guide/platforms/android/index.md
index a70f619..cbfa150 100644
--- a/www/docs/en/dev/guide/platforms/android/index.md
+++ b/www/docs/en/dev/guide/platforms/android/index.md
@@ -92,7 +92,7 @@
 and make sure the following are installed:
 
 1. Android Platform SDK for your targeted version of Android
-1. Android SDK build-tools version 19.1.0 or higher
+1. Android SDK build-tools version 28.0.3 or higher
 1. Android Support Repository (found under the "SDK Tools" tab)
 
 See Android's documentation on [Installing SDK Packages](https://developer.android.com/studio/intro/update)