diff --git a/composer.json b/composer.json
index 2465af9..5d82e2d 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
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     "clue/block-react": "^1.1",
     "friendsofphp/php-cs-fixer": "^2.5",
-    "infection/infection": "^0.8.2",
+    "infection/infection": "^0.9.0",
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     "jakub-onderka/php-parallel-lint": "^0.9.2",
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diff --git a/composer.lock b/composer.lock
index a3599fd..2bd4664 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,10 +1,10 @@
 {
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         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
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-    "content-hash": "779ffbf40ed23086cf122a395c540d5b",
+    "content-hash": "65eccefce96891915ca5379697739093",
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@@ -175,6 +175,50 @@
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+                "psr/log": "^1.0"
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+            "require-dev": {
+                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.5"
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+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Composer\\XdebugHandler\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "John Stevenson",
+                    "email": "john-stevenson@blueyonder.co.uk"
+                }
+            ],
+            "description": "Restarts a process without xdebug.",
+            "keywords": [
+                "Xdebug",
+                "performance"
+            ],
+            "time": "2018-04-11T15:42:36+00:00"
+        },
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             "version": "v1.6.0",
@@ -447,20 +491,22 @@
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-                "reference": "4a4fdb4fc39987dfda247213b5d6a687abf3304c",
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@@ -475,8 +521,8 @@
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@@ -496,6 +542,24 @@
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                     "email": "maks.rafalko@gmail.com",
                     "homepage": "https://twitter.com/maks_rafalko"
+                },
+                {
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+                    "homepage": "https://github.com/BackEndTea"
+                },
+                {
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+                    "email": "theo.fidry@gmail.com",
+                    "homepage": "https://twitter.com/tfidry"
+                },
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+                    "homepage": "https://github.com/sidz"
+                },
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+                    "email": "alexey@kopytko.com",
+                    "homepage": "https://www.alexeykopytko.com"
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@@ -507,7 +571,7 @@
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@@ -910,24 +974,24 @@
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@@ -935,7 +999,7 @@
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@@ -957,7 +1021,56 @@
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+            "time": "2018-06-03T11:33:10+00:00"
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@@ -1980,6 +2093,53 @@
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+                    "homepage": "http://www.php-fig.org/"
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+            "homepage": "https://github.com/php-fig/log",
+            "keywords": [
+                "log",
+                "psr",
+                "psr-3"
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@@ -2231,16 +2391,16 @@
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@@ -2283,7 +2443,7 @@
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@@ -2685,16 +2845,16 @@
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@@ -2749,7 +2909,7 @@
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@@ -2816,16 +2976,16 @@
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@@ -2835,7 +2995,7 @@
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@@ -2862,20 +3022,20 @@
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@@ -2884,7 +3044,7 @@
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@@ -3197,16 +3357,16 @@
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