diff --git a/.travis.yml b/.travis.yml
index ecdc289..e1578d6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,6 @@ sudo: false
 
 language: php
 php:
-  - 5.5
   - 5.6
   - 7.0
   - 7.1