diff --git a/.travis.yml b/.travis.yml
index 60e5755..4b80afa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,7 +10,7 @@ before_install:
 - tar xf android-sdk_r23.0.2-linux.tgz
 - export ANDROID_HOME=`pwd`/android-sdk-linux
 - export PATH=${PATH}:${ANDROID_HOME}/tools:${ANDROID_HOME}/platform-tools
-- ( sleep 5 && while [ 1 ]; do sleep 1; echo y; done ) | android update sdk --filter tools,platform-tools,build-tools-24.0.0,android-16,extra-google-m2repository --no-ui --no-https -a
+- ( sleep 5 && while [ 1 ]; do sleep 1; echo y; done ) | android update sdk --filter tools,platform-tools,build-tools-21.0.1,android-16,extra-google-m2repository --no-ui --no-https -a
 - ( sleep 5 && while [ 1 ]; do sleep 1; echo y; done ) | android update sdk --filter extra-android-m2repository --no-ui --no-https -a
 script: 
   - mvn clean install