diff --git a/examples/config.py b/examples/config.py
index a2cc50fc..e1272649 100644
--- a/examples/config.py
+++ b/examples/config.py
@@ -9,7 +9,7 @@
 # Override the path to the Android NDK, $ANDROID_NDK by default
 # ndk_path = "/path/to/android-ndk"
 # Build tools version to be used
-build_tools = "20.0.0"
+build_tools = "21.0.2"
 
 # Command for running Ant
 # ant = "/path/to/ant"