diff --git a/.travis.yml b/.travis.yml
index 1ef09376..84ac57fe 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,9 @@
 sudo: required
+dist: trusty
 language: php
 php:
   - 5.3.3
+    dist: precise
   - 5.4
   - 5.5
   - 5.6