diff --git a/.travis.yml b/.travis.yml
index 135b2e7..0479fcd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,11 +5,6 @@ php:
   - 5.6
   - 7.0
   - 7.1
-  - hhvm
-
-matrix:
-  allow_failures:
-    - php: 7.1
 
 before_script: composer install
 
diff --git a/composer.json b/composer.json
index 89132f3..6d6a38a 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,8 @@
         "psr/http-message": "^1.0"
     },
     "require-dev": {
-        "slim/slim": "^3.0"
+        "slim/slim": "^3.0",
+        "phpunit/phpunit": "^4.0"
     },
     "autoload": {
         "psr-4": {