diff --git a/.travis.yml b/.travis.yml
index 141ff5d8..bd2a5e41 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,7 @@
 language: php
 php:
   - 5.4
+  - 5.3
 script: phpunit --coverage-clover=coverage.clover
 before_script:
   - pear channel-discover pear.phpunit.de