diff --git a/shippable.yml b/shippable.yml
index dd227e3..13e63db 100644
--- a/shippable.yml
+++ b/shippable.yml
@@ -1,8 +1,8 @@
 language: php
 
 php:
- # - 5.5
-  - 5.6  
+  - 5.5
+ # - 5.6  
 
 before_script:
   - composer dumpautoload