diff --git a/composer.lock b/composer.lock
index 49db23d..239849d 100644
--- a/composer.lock
+++ b/composer.lock
@@ -268,6 +268,7 @@
                 "serialize",
                 "tokenizer"
             ],
+            "abandoned": "opis/closure",
             "time": "2018-03-21T22:21:57+00:00"
         },
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@@ -1419,20 +1420,6 @@
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-                    "type": "github"
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@@ -1491,20 +1478,6 @@
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-                    "url": "https://symfony.com/sponsor",
-                    "type": "custom"
-                },
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-                    "type": "github"
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@@ -1564,20 +1537,6 @@
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-                    "type": "custom"
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-                    "type": "github"
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-                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
-                    "type": "tidelift"
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@@ -1634,20 +1593,6 @@
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-                    "type": "github"
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@@ -1700,20 +1645,6 @@
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@@ -1791,20 +1722,6 @@
             ],
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             "homepage": "https://symfony.com",
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-                    "type": "github"
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@@ -1937,20 +1854,6 @@
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-                    "type": "github"
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@@ -2010,20 +1913,6 @@
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@@ -2200,12 +2089,6 @@
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@@ -2449,12 +2332,6 @@
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@@ -3908,16 +3785,16 @@
         },
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-                "reference": "c0ecbfb898ab8b24d8a59a23520f7b2a73e27b5b",
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@@ -3938,6 +3815,7 @@
                 "phpunit/php-invoker": "^3.0",
                 "phpunit/php-text-template": "^2.0",
                 "phpunit/php-timer": "^3.0",
+                "sebastian/code-unit": "^1.0",
                 "sebastian/comparator": "^4.0",
                 "sebastian/diff": "^4.0",
                 "sebastian/environment": "^5.0.1",
@@ -3961,7 +3839,7 @@
             "type": "library",
             "extra": {
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-                    "dev-master": "9.0-dev"
+                    "dev-master": "9.1-dev"
                 }
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@@ -3990,17 +3868,7 @@
                 "testing",
                 "xunit"
             ],
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-                    "type": "custom"
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-                    "type": "github"
-                }
-            ],
-            "time": "2020-03-31T08:57:51+00:00"
+            "time": "2020-04-03T05:23:04+00:00"
         },
         {
             "name": "psr/event-dispatcher",
@@ -4121,6 +3989,52 @@
             ],
             "time": "2020-03-21T06:55:27+00:00"
         },
+        {
+            "name": "sebastian/code-unit",
+            "version": "1.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sebastianbergmann/code-unit.git",
+                "reference": "8d8f09bd47c75159921e6e84fdef146343962866"
+            },
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+                "url": "https://api.github.com/repos/sebastianbergmann/code-unit/zipball/8d8f09bd47c75159921e6e84fdef146343962866",
+                "reference": "8d8f09bd47c75159921e6e84fdef146343962866",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.3"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^9.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0-dev"
+                }
+            },
+            "autoload": {
+                "classmap": [
+                    "src/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de",
+                    "role": "lead"
+                }
+            ],
+            "description": "Collection of value objects that represent the PHP code units",
+            "homepage": "https://github.com/sebastianbergmann/code-unit",
+            "time": "2020-03-30T11:59:20+00:00"
+        },
         {
             "name": "sebastian/code-unit-reverse-lookup",
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@@ -4337,12 +4251,6 @@
                 "environment",
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             "time": "2020-03-31T12:14:15+00:00"
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         {
@@ -4819,20 +4727,6 @@
             ],
             "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
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@@ -4903,20 +4797,6 @@
             ],
             "description": "Symfony EventDispatcher Component",
             "homepage": "https://symfony.com",
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-                    "url": "https://symfony.com/sponsor",
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             "time": "2020-03-27T16:56:45+00:00"
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@@ -5025,20 +4905,6 @@
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             "description": "Symfony Filesystem Component",
             "homepage": "https://symfony.com",
-            "funding": [
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-                    "url": "https://symfony.com/sponsor",
-                    "type": "custom"
-                },
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             "time": "2020-03-27T16:56:45+00:00"
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@@ -5093,20 +4959,6 @@
                 "configuration",
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@@ -5221,20 +5073,6 @@
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@@ -5293,20 +5131,6 @@
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             "time": "2020-02-27T09:26:54+00:00"
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@@ -5356,20 +5180,6 @@
             ],
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             "homepage": "https://symfony.com",
-            "funding": [
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-                    "url": "https://symfony.com/sponsor",
-                    "type": "custom"
-                },
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@@ -5478,20 +5288,6 @@
             ],
             "description": "Symfony Stopwatch Component",
             "homepage": "https://symfony.com",
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-                    "url": "https://symfony.com/sponsor",
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             "time": "2020-03-27T16:56:45+00:00"
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         {
@@ -5783,6 +5579,5 @@
         "ext-fileinfo": "*",
         "ext-zip": "*"
     },
-    "platform-dev": [],
-    "plugin-api-version": "1.1.0"
+    "platform-dev": []
 }