allowing any version of phpunit

Peter · Peter · commit 3a45a2c7dbe0 · 2016-02-02T03:12:00.000+13:00
diff --git a/composer.json b/composer.json
@@ -24,7 +24,7 @@
     "require-dev": {
         "guzzlehttp/guzzle": "5.x",
         "sstalle/php7cc": "^1.0",
-        "phpunit/phpunit": "^4.8"
+        "phpunit/phpunit": "*"
     },
     "suggest": {
         "guzzlehttp/guzzle@5.x": "To use Guzzle5 request resolver"
