diff --git a/.travis.yml b/.travis.yml
index 5422d0150..8d385721c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,5 @@
 language: php
+dist: precise
 
 php:
     - 5.5
diff --git a/travis.php.ini b/travis.php.ini
index 2a30f4186..0b1342670 100644
--- a/travis.php.ini
+++ b/travis.php.ini
@@ -1 +1 @@
-memory_limit = 2G
+memory_limit = 4G