diff --git a/composer.lock b/composer.lock
index 0471a8e..d4a3e6b 100644
--- a/composer.lock
+++ b/composer.lock
@@ -2042,16 +2042,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "6.4.3",
+            "version": "6.4.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "06b28548fd2b4a20c3cd6e247dc86331a7d4db13"
+                "reference": "562f7dc75d46510a4ed5d16189ae57fbe45a9932"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/06b28548fd2b4a20c3cd6e247dc86331a7d4db13",
-                "reference": "06b28548fd2b4a20c3cd6e247dc86331a7d4db13",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/562f7dc75d46510a4ed5d16189ae57fbe45a9932",
+                "reference": "562f7dc75d46510a4ed5d16189ae57fbe45a9932",
                 "shasum": ""
             },
             "require": {
@@ -2122,7 +2122,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2017-10-16T13:18:59+00:00"
+            "time": "2017-11-08T11:26:09+00:00"
         },
         {
             "name": "phpunit/phpunit-mock-objects",