diff --git a/.travis.yml b/.travis.yml
index 2685f58..3c4c2e1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,7 @@
 language: php
 
 php:
+  - 5.3
   - 5.4
   - 5.5
   - 5.6
@@ -9,6 +10,7 @@ php:
 
 matrix:
   allow_failures:
+    - php: 5.3
     - php: hhvm
     - php: hhvm-nightly