diff --git a/composer.lock b/composer.lock
index 025c098..843c7a1 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1467,23 +1467,23 @@
         },
         {
             "name": "mikey179/vfsstream",
-            "version": "v1.6.6",
+            "version": "v1.6.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/bovigo/vfsStream.git",
-                "reference": "095238a0711c974ae5b4ebf4c4534a23f3f6c99d"
+                "reference": "2b544ac3a21bcc4dde5d90c4ae8d06f4319055fb"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/bovigo/vfsStream/zipball/095238a0711c974ae5b4ebf4c4534a23f3f6c99d",
-                "reference": "095238a0711c974ae5b4ebf4c4534a23f3f6c99d",
+                "url": "https://api.github.com/repos/bovigo/vfsStream/zipball/2b544ac3a21bcc4dde5d90c4ae8d06f4319055fb",
+                "reference": "2b544ac3a21bcc4dde5d90c4ae8d06f4319055fb",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.5"
+                "phpunit/phpunit": "^4.5|^5.0"
             },
             "type": "library",
             "extra": {
@@ -1509,7 +1509,7 @@
             ],
             "description": "Virtual file system to mock the real file system in unit tests.",
             "homepage": "http://vfs.bovigo.org/",
-            "time": "2019-04-08T13:54:32+00:00"
+            "time": "2019-08-01T01:38:37+00:00"
         },
         {
             "name": "phar-io/manifest",
@@ -1596,18 +1596,18 @@
             "authors": [
                 {
                     "name": "Arne Blankerts",
-                    "email": "arne@blankerts.de",
-                    "role": "Developer"
+                    "role": "Developer",
+                    "email": "arne@blankerts.de"
                 },
                 {
                     "name": "Sebastian Heuer",
-                    "email": "sebastian@phpeople.de",
-                    "role": "Developer"
+                    "role": "Developer",
+                    "email": "sebastian@phpeople.de"
                 },
                 {
                     "name": "Sebastian Bergmann",
-                    "email": "sebastian@phpunit.de",
-                    "role": "Developer"
+                    "role": "Developer",
+                    "email": "sebastian@phpunit.de"
                 }
             ],
             "description": "Library for handling version information and constraints",