diff --git a/scripts/travis_before_install.sh b/scripts/travis_before_install.sh
index 2dc48787a..1c57a261f 100755
--- a/scripts/travis_before_install.sh
+++ b/scripts/travis_before_install.sh
@@ -42,7 +42,7 @@ if [[ "${MASON_PLATFORM}" == "android" ]]; then
     echo "debug: installing SDK"
     #mapbox_time "installing SDK" \
     sudo apt-get -y install lib32stdc++6 lib32z1
-    echo y | ./android-sdk-linux/tools/android update sdk -u -a -t tools,platform-tools,build-tools-21.1.0,android-19
+    echo y | ./android-sdk-linux/tools/android update sdk -u -a -t tools,platform-tools,build-tools-21.1.0,android-19,android-21
 fi
 
 if [[ ${TRAVIS_OS_NAME} == "linux" ]]; then