diff --git a/.travis.yml b/.travis.yml
index 1175e56c..5be546d9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,7 +7,9 @@ language: cpp
 #     packages:
 #       - gcc-arm-none-eabi
 
-before_script:
+cache: apt
+
+before_install:
   - sudo add-apt-repository ppa:terry.guo/gcc-arm-embedded -y
   - sudo apt-get update -qq
   - sudo apt-get install -y gcc-arm-none-eabi