diff --git a/.travis.yml b/.travis.yml
index 13677cb..0b836b3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,8 @@ php:
   - 7.0
   - 7.1
   - 7.2
+  - 7.3
+  - 7.4
 
 env:
   - DEPS=lowest
diff --git a/composer.json b/composer.json
index 5066189..4cc1d04 100644
--- a/composer.json
+++ b/composer.json
@@ -11,12 +11,12 @@
         "module"
     ],
     "require": {
-        "php": ">=5.6",
+        "php": "^5.6 || ^7.0",
         "psr/container": "^1.0"
     },
     "require-dev": {
         "psr/http-message": "^1.0",
-        "phpunit/phpunit": "^5.7.25 || ^6.0",
+        "phpunit/phpunit": "^5.7.27 || ^6.5.14 || ^7.5.20",
         "zendframework/zend-http": "^2.4",
         "zendframework/zend-eventmanager": "^2.4 || ^3.0",
         "zendframework/zend-mvc": "^2.4 || ^3.0",
diff --git a/phpunit.xml b/phpunit.xml
index 0344107..0e16aff 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -2,7 +2,7 @@
 
 <phpunit bootstrap="./vendor/autoload.php" colors="true">
     <testsuites>
-        <testsuite>
+        <testsuite name="Unit tests">
             <directory>./test</directory>
         </testsuite>
     </testsuites>