diff --git a/.travis.yml b/.travis.yml
index 18d8cbea..e7ee66d3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,7 @@ language: php
 
 php:
   - 5.2
+  - 5.3.3
   - 5.3
   - 5.4