phpunit min 5.7

ovanschie · web-flow · commit 6f7c2af85aaf · 2017-04-08T23:48:06.000+02:00
diff --git a/composer.json b/composer.json
@@ -19,7 +19,7 @@
         "php": "^7.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "5.*"
+        "phpunit/phpunit": "^5.7"
     },
     "autoload": {
         "psr-4": {
