diff --git a/.travis.yml b/.travis.yml
index 2f4a194..50caf9a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,6 +10,11 @@ php:
 # See: http://docs.travis-ci.com/user/workers/container-based-infrastructure/
 sudo: false
 
+## Cache composer
+cache:
+  directories:
+    - $HOME/.composer/cache
+
 matrix:
   include:
     - php: 5.5