diff --git a/.travis.yml b/.travis.yml
index 1c09ed6..649fb3f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,11 @@
 language: php
 dist: trusty
 php:
-  - "5.5"
   - "5.4"
+  - "5.5"
+  - "5.6"
+  - "7.0"
+  - "7.1"
 matrix:
   include:
     - php: "5.3"