diff --git a/.travis.yml b/.travis.yml
index ff544ca..d0dc010 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,15 +1,5 @@
 language: php
 
-php:
-# - 5.3 # requires old distro
-  - 5.4
-  - 5.5
-  - 5.6
-  - 7.0
-  - 7.1
-  - 7.2
-  - hhvm # ignore errors, see below
-
 # lock distro so new future defaults will not break the build
 dist: trusty
 
@@ -17,8 +7,19 @@ matrix:
   include:
     - php: 5.3
       dist: precise
+    - php: 5.4
+    - php: 5.5
+    - php: 5.6
+    - php: 7.0
+    - php: 7.1
+    - php: 7.2
+    - php: 7.3
+    - php: 7.4
+    - php: hhvm-3.18
+      install:
+        - composer require phpunit/phpunit:^5 --dev --no-interaction # requires legacy phpunit
   allow_failures:
-    - php: hhvm
+    - php: hhvm-3.18
 
 sudo: false
 
diff --git a/composer.json b/composer.json
index f9b6008..735654d 100644
--- a/composer.json
+++ b/composer.json
@@ -19,6 +19,6 @@
     },
     "require-dev": {
         "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3",
-        "phpunit/phpunit": "^6.0 || ^5.7 || ^4.8.35"
+        "phpunit/phpunit": "^7.0 || ^6.0 || ^5.7 || ^4.8.35"
     }
 }
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 55088da..ee0a458 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -4,7 +4,7 @@
          colors="true"
 >
     <testsuites>
-        <testsuite>
+        <testsuite name="NDJSON test suite">
             <directory>./tests/</directory>
         </testsuite>
     </testsuites>