diff --git a/.travis.yml b/.travis.yml
index e15147b..4b31163 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,7 @@ php:
   - 5.3
   - 5.4
   - 5.5
+  - 5.6
   - hhvm
 branches:
   except: