diff --git a/.travis.yml b/.travis.yml
index 9586c1c..31b9f18 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,14 +2,15 @@ language: php
 sudo: false 
 
 php:
-  - 5.5
-  - 5.6
   - 7.0
+  - 7.1
+  - 7.2
+  - 7.3
   - hhvm
   
-before_script: composer install --prefer-source
+before_script: composer install --prefer-source --dev
 
-script: phpunit --debug --coverage-text
+script: vendor/phpunit/phpunit/phpunit
 
 notifications:
   email:
diff --git a/composer.json b/composer.json
index d2949f5..2d204e9 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,8 @@
 
     "require-dev": {
         "google/apiclient": "1.1.7",
-        "symfony/symfony": "^2.3.25"
+        "symfony/symfony": "^2.3.25",
+        "phpunit/phpunit": "^5.0"
     },
 
     "suggest": {