Update composer.json

SjorsO · web-flow · commit 20ca20acc771 · 2018-02-02T10:48:00.000+01:00
diff --git a/composer.json b/composer.json
@@ -21,7 +21,7 @@
     ],
     "require": {
         "php": "^7.0",
-        "phpunit/phpunit": "^5.7|^6.0"
+        "phpunit/phpunit": "^5.7|^6.0|^7.0"
     },
     "autoload": {
         "psr-4": {
