diff --git a/composer.json b/composer.json
index 81c0882..68bbd36 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
         "php"                : ">=5.5.0",
         "ext-mbstring"       : "*",
         "phpoption/phpoption": ">=1.6.0",
-        "symfony/console"    : "2.*"
+        "symfony/console"    : "3.4.*"
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diff --git a/composer.lock b/composer.lock
index 60573f3..ce2f01f 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,15 +4,16 @@
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-    "content-hash": "2d1f5b9a5604437ceda6f7b462426cb8",
+    "hash": "8ad489a84a899df0a7837b885baab6be",
+    "content-hash": "4ee27e6690c51a72f8850ae85f24e3be",
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             "name": "phpoption/phpoption",
-            "version": "1.6.0",
+            "version": "1.6.1",
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                 "url": "https://github.com/centraldesktop/php-option.git",
-                "reference": "23f637cbf6da1b34b30f90f8c3762b883d4199ff"
+                "reference": "eeb602707aa352ea1db7b9180cc340725f6fbc59"
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@@ -47,7 +48,7 @@
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-            "time": "2017-09-13T18:56:35+00:00"
+            "time": "2017-10-23 18:32:02"
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@@ -94,41 +95,49 @@
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-            "time": "2016-10-10T12:19:37+00:00"
+            "time": "2016-10-10 12:19:37"
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         {
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-            "version": "v2.8.27",
+            "version": "v3.4.3",
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                 "url": "https://github.com/symfony/console.git",
-                "reference": "c0807a2ca978e64d8945d373a9221a5c35d1a253"
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+                "php": "^5.5.9|>=7.0.8",
+                "symfony/debug": "~2.8|~3.0|~4.0",
                 "symfony/polyfill-mbstring": "~1.0"
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+                "symfony/process": "<3.3"
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-                "symfony/process": "~2.1|~3.0.0"
+                "symfony/config": "~3.3|~4.0",
+                "symfony/dependency-injection": "~3.4|~4.0",
+                "symfony/event-dispatcher": "~2.8|~3.0|~4.0",
+                "symfony/lock": "~3.4|~4.0",
+                "symfony/process": "~3.3|~4.0"
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             "suggest": {
                 "psr/log": "For using the console logger",
                 "symfony/event-dispatcher": "",
+                "symfony/lock": "",
                 "symfony/process": ""
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+                    "dev-master": "3.4-dev"
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@@ -155,37 +164,36 @@
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             "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
-            "time": "2017-08-27T14:29:03+00:00"
+            "time": "2018-01-03 07:37:34"
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+            "version": "v3.4.3",
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             "require-dev": {
-                "symfony/class-loader": "~2.8|~3.0",
-                "symfony/http-kernel": "~2.8|~3.0"
+                "symfony/http-kernel": "~2.8|~3.0|~4.0"
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@@ -212,20 +220,20 @@
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+            "time": "2018-01-03 17:14:19"
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+            "version": "v1.6.0",
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@@ -237,7 +245,7 @@
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@@ -271,7 +279,7 @@
                 "portable",
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-            "time": "2017-06-14T15:44:48+00:00"
+            "time": "2017-10-11 12:05:26"
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@@ -327,7 +335,7 @@
                 "constructor",
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-            "time": "2015-06-14T21:17:01+00:00"
+            "time": "2015-06-14 21:17:01"
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@@ -381,33 +389,39 @@
                 "reflection",
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-            "time": "2017-09-11T18:02:19+00:00"
+            "time": "2017-09-11 18:02:19"
         },
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-            "version": "4.1.1",
+            "version": "4.2.0",
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                 "url": "https://github.com/phpDocumentor/ReflectionDocBlock.git",
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                 "webmozart/assert": "^1.0"
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             "require-dev": {
-                "mockery/mockery": "^0.9.4",
-                "phpunit/phpunit": "^4.4"
+                "doctrine/instantiator": "~1.0.5",
+                "mockery/mockery": "^1.0",
+                "phpunit/phpunit": "^6.4"
             },
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+            "extra": {
+                "branch-alias": {
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+                }
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@@ -426,7 +440,7 @@
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-            "time": "2017-08-30T18:51:59+00:00"
+            "time": "2017-11-27 17:38:31"
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@@ -473,20 +487,20 @@
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-            "time": "2017-07-14T14:27:02+00:00"
+            "time": "2017-07-14 14:27:02"
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-            "version": "v1.7.2",
+            "version": "1.7.3",
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                 "url": "https://github.com/phpspec/prophecy.git",
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-                "reference": "c9b8c6088acd19d769d4cc0ffa60a9fe34344bd6",
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@@ -498,7 +512,7 @@
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@@ -536,7 +550,7 @@
                 "spy",
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-            "time": "2017-09-04T11:05:03+00:00"
+            "time": "2017-11-24 13:59:53"
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@@ -598,20 +612,20 @@
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-            "time": "2015-10-06T15:47:00+00:00"
+            "time": "2015-10-06 15:47:00"
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+            "version": "1.4.5",
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@@ -645,7 +659,7 @@
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@@ -686,7 +700,7 @@
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+            "time": "2015-06-21 13:50:34"
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@@ -735,20 +749,20 @@
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-            "time": "2017-02-26T11:10:40+00:00"
+            "time": "2017-02-26 11:10:40"
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+            "version": "1.4.12",
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@@ -784,7 +798,7 @@
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@@ -856,7 +870,7 @@
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@@ -912,7 +926,7 @@
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@@ -976,7 +990,7 @@
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-            "time": "2017-01-29T09:50:25+00:00"
+            "time": "2017-01-29 09:50:25"
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@@ -1028,7 +1042,7 @@
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@@ -1078,7 +1092,7 @@
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@@ -1145,7 +1159,7 @@
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@@ -1196,7 +1210,7 @@
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@@ -1249,7 +1263,7 @@
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-            "time": "2016-10-03T07:41:43+00:00"
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@@ -1284,27 +1298,30 @@
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-            "time": "2015-06-21T13:59:46+00:00"
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@@ -1312,7 +1329,7 @@
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@@ -1339,7 +1356,7 @@
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@@ -1389,7 +1406,7 @@
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