diff --git a/.travis.yml b/.travis.yml
index f7e86cd..7bc1ce0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,9 @@ language: php
 php:
   - 5.4
   - 5.5
+  - 5.3
+  - 5.2
+  - 5.1
 
 before_script:
   - echo 'Installing composer dependencies now!'