diff --git a/.travis.yml b/.travis.yml
index 882cf5a..ffa93d8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,6 @@ php:
   - "7.1"
   - "7.0"
   - "5.6"
-  - "5.5"
 install:
   - "composer self-update"
   - "composer install"