diff --git a/.travis.yml b/.travis.yml
index b779753..7a94b56 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,11 +12,12 @@ env:
 
 matrix:
   include:
-    - php: 5.5
+    - php: 5.6
       env: PHPUNIT_TEST=1
 
 before_script:
   - composer install --dev --prefer-dist
+  - composer require silverstripe/config:1.0.x-dev silverstripe/framework:4.0.x-dev --prefer-dist
   - pyrus install pear/PHP_CodeSniffer
   - phpenv rehash