diff --git a/app/Http/Controllers/MarketController.php b/app/Http/Controllers/MarketController.php
index c2ca121f..5812c094 100644
--- a/app/Http/Controllers/MarketController.php
+++ b/app/Http/Controllers/MarketController.php
@@ -121,9 +121,11 @@ class MarketController extends Controller
 
                 $registryData = json_decode($pluginsJson, true);
                 $received = Arr::get($registryData, 'version');
-                if (is_int($received) && $received != $registryVersion) {
-                    throw new Exception("Only version $registryVersion of market registry is accepted.");
-                }
+                abort_if(
+                    is_int($received) && $received != $registryVersion,
+                    500,
+                    "Only version $registryVersion of market registry is accepted."
+                );
 
                 return Arr::get($registryData, 'packages', []);
             })->flatten(1);
diff --git a/composer.lock b/composer.lock
index f54bea7e..bd988dde 100644
--- a/composer.lock
+++ b/composer.lock
@@ -8,16 +8,16 @@
     "packages": [
         {
             "name": "composer/semver",
-            "version": "1.4.2",
+            "version": "1.5.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/composer/semver.git",
-                "reference": "c7cb9a2095a074d131b65a8a0cd294479d785573"
+                "reference": "46d9139568ccb8d9e7cdd4539cab7347568a5e2e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/composer/semver/zipball/c7cb9a2095a074d131b65a8a0cd294479d785573",
-                "reference": "c7cb9a2095a074d131b65a8a0cd294479d785573",
+                "url": "https://api.github.com/repos/composer/semver/zipball/46d9139568ccb8d9e7cdd4539cab7347568a5e2e",
+                "reference": "46d9139568ccb8d9e7cdd4539cab7347568a5e2e",
                 "shasum": ""
             },
             "require": {
@@ -66,7 +66,7 @@
                 "validation",
                 "versioning"
             ],
-            "time": "2016-08-30T16:08:34+00:00"
+            "time": "2019-03-19T17:25:45+00:00"
         },
         {
             "name": "defuse/php-encryption",
@@ -531,25 +531,30 @@
         },
         {
             "name": "dragonmantank/cron-expression",
-            "version": "v2.2.0",
+            "version": "v2.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/dragonmantank/cron-expression.git",
-                "reference": "92a2c3768d50e21a1f26a53cb795ce72806266c5"
+                "reference": "72b6fbf76adb3cf5bc0db68559b33d41219aba27"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/dragonmantank/cron-expression/zipball/92a2c3768d50e21a1f26a53cb795ce72806266c5",
-                "reference": "92a2c3768d50e21a1f26a53cb795ce72806266c5",
+                "url": "https://api.github.com/repos/dragonmantank/cron-expression/zipball/72b6fbf76adb3cf5bc0db68559b33d41219aba27",
+                "reference": "72b6fbf76adb3cf5bc0db68559b33d41219aba27",
                 "shasum": ""
             },
             "require": {
-                "php": ">=7.0.0"
+                "php": "^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~6.4"
+                "phpunit/phpunit": "^6.4|^7.0"
             },
             "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.3-dev"
+                }
+            },
             "autoload": {
                 "psr-4": {
                     "Cron\\": "src/Cron/"
@@ -576,7 +581,7 @@
                 "cron",
                 "schedule"
             ],
-            "time": "2018-06-06T03:12:17+00:00"
+            "time": "2019-03-31T00:38:28+00:00"
         },
         {
             "name": "egulias/email-validator",
@@ -637,16 +642,16 @@
         },
         {
             "name": "erusev/parsedown",
-            "version": "1.7.1",
+            "version": "1.7.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/erusev/parsedown.git",
-                "reference": "92e9c27ba0e74b8b028b111d1b6f956a15c01fc1"
+                "reference": "6d893938171a817f4e9bc9e86f2da1e370b7bcd7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/erusev/parsedown/zipball/92e9c27ba0e74b8b028b111d1b6f956a15c01fc1",
-                "reference": "92e9c27ba0e74b8b028b111d1b6f956a15c01fc1",
+                "url": "https://api.github.com/repos/erusev/parsedown/zipball/6d893938171a817f4e9bc9e86f2da1e370b7bcd7",
+                "reference": "6d893938171a817f4e9bc9e86f2da1e370b7bcd7",
                 "shasum": ""
             },
             "require": {
@@ -679,7 +684,7 @@
                 "markdown",
                 "parser"
             ],
-            "time": "2018-03-08T01:11:30+00:00"
+            "time": "2019-03-17T18:48:37+00:00"
         },
         {
             "name": "firebase/php-jwt",
@@ -982,16 +987,16 @@
         },
         {
             "name": "laravel/framework",
-            "version": "v5.8.8",
+            "version": "v5.8.15",
             "source": {
                 "type": "git",
                 "url": "https://github.com/laravel/framework.git",
-                "reference": "3f0a5744a866ae3ae0ca84f47080501714af01ba"
+                "reference": "8a34004aed6ff0aa4072360e3e5bd875edebc223"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/laravel/framework/zipball/3f0a5744a866ae3ae0ca84f47080501714af01ba",
-                "reference": "3f0a5744a866ae3ae0ca84f47080501714af01ba",
+                "url": "https://api.github.com/repos/laravel/framework/zipball/8a34004aed6ff0aa4072360e3e5bd875edebc223",
+                "reference": "8a34004aed6ff0aa4072360e3e5bd875edebc223",
                 "shasum": ""
             },
             "require": {
@@ -1125,7 +1130,7 @@
                 "framework",
                 "laravel"
             ],
-            "time": "2019-03-26T17:19:10+00:00"
+            "time": "2019-04-30T14:05:03+00:00"
         },
         {
             "name": "laravel/passport",
@@ -1468,16 +1473,16 @@
         },
         {
             "name": "mews/captcha",
-            "version": "2.2.5",
+            "version": "2.2.9",
             "source": {
                 "type": "git",
                 "url": "https://github.com/mewebstudio/captcha.git",
-                "reference": "44ed8d66aa6f27443ff51bbf48a5b28cb958d75f"
+                "reference": "77ee353db8d92c001b411a0afbb7b3ccb71500b0"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/mewebstudio/captcha/zipball/44ed8d66aa6f27443ff51bbf48a5b28cb958d75f",
-                "reference": "44ed8d66aa6f27443ff51bbf48a5b28cb958d75f",
+                "url": "https://api.github.com/repos/mewebstudio/captcha/zipball/77ee353db8d92c001b411a0afbb7b3ccb71500b0",
+                "reference": "77ee353db8d92c001b411a0afbb7b3ccb71500b0",
                 "shasum": ""
             },
             "require": {
@@ -1531,7 +1536,7 @@
                 "laravel5 Captcha",
                 "laravel5 Security"
             ],
-            "time": "2019-01-21T08:00:11+00:00"
+            "time": "2019-04-19T12:35:00+00:00"
         },
         {
             "name": "monolog/monolog",
@@ -1676,16 +1681,16 @@
         },
         {
             "name": "nesbot/carbon",
-            "version": "2.14.0",
+            "version": "2.17.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/briannesbitt/Carbon.git",
-                "reference": "7a748bc397bd14b8a43b13beca73a8ffec554fd9"
+                "reference": "96acbc0c03782e8115156dd4dd8b736267155066"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/briannesbitt/Carbon/zipball/7a748bc397bd14b8a43b13beca73a8ffec554fd9",
-                "reference": "7a748bc397bd14b8a43b13beca73a8ffec554fd9",
+                "url": "https://api.github.com/repos/briannesbitt/Carbon/zipball/96acbc0c03782e8115156dd4dd8b736267155066",
+                "reference": "96acbc0c03782e8115156dd4dd8b736267155066",
                 "shasum": ""
             },
             "require": {
@@ -1695,9 +1700,9 @@
             },
             "require-dev": {
                 "friendsofphp/php-cs-fixer": "^2.14 || ^3.0",
-                "kylekatarnls/multi-tester": "^0.1",
+                "kylekatarnls/multi-tester": "^1.1",
                 "phpmd/phpmd": "^2.6",
-                "phpstan/phpstan": "^0.10.8",
+                "phpstan/phpstan": "^0.11",
                 "phpunit/phpunit": "^7.5 || ^8.0",
                 "squizlabs/php_codesniffer": "^3.4"
             },
@@ -1732,7 +1737,7 @@
                 "datetime",
                 "time"
             ],
-            "time": "2019-02-25T20:57:37+00:00"
+            "time": "2019-04-27T18:04:27+00:00"
         },
         {
             "name": "opis/closure",
@@ -2083,16 +2088,16 @@
         },
         {
             "name": "psr/http-factory",
-            "version": "1.0.0",
+            "version": "1.0.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/php-fig/http-factory.git",
-                "reference": "378bfe27931ecc54ff824a20d6f6bfc303bbd04c"
+                "reference": "12ac7fcd07e5b077433f5f2bee95b3a771bf61be"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/php-fig/http-factory/zipball/378bfe27931ecc54ff824a20d6f6bfc303bbd04c",
-                "reference": "378bfe27931ecc54ff824a20d6f6bfc303bbd04c",
+                "url": "https://api.github.com/repos/php-fig/http-factory/zipball/12ac7fcd07e5b077433f5f2bee95b3a771bf61be",
+                "reference": "12ac7fcd07e5b077433f5f2bee95b3a771bf61be",
                 "shasum": ""
             },
             "require": {
@@ -2131,7 +2136,7 @@
                 "request",
                 "response"
             ],
-            "time": "2018-07-30T21:54:04+00:00"
+            "time": "2019-04-30T12:38:16+00:00"
         },
         {
             "name": "psr/http-message",
@@ -2402,25 +2407,28 @@
         },
         {
             "name": "swiftmailer/swiftmailer",
-            "version": "v6.1.3",
+            "version": "v6.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/swiftmailer/swiftmailer.git",
-                "reference": "8ddcb66ac10c392d3beb54829eef8ac1438595f4"
+                "reference": "5397cd05b0a0f7937c47b0adcb4c60e5ab936b6a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/swiftmailer/swiftmailer/zipball/8ddcb66ac10c392d3beb54829eef8ac1438595f4",
-                "reference": "8ddcb66ac10c392d3beb54829eef8ac1438595f4",
+                "url": "https://api.github.com/repos/swiftmailer/swiftmailer/zipball/5397cd05b0a0f7937c47b0adcb4c60e5ab936b6a",
+                "reference": "5397cd05b0a0f7937c47b0adcb4c60e5ab936b6a",
                 "shasum": ""
             },
             "require": {
                 "egulias/email-validator": "~2.0",
-                "php": ">=7.0.0"
+                "php": ">=7.0.0",
+                "symfony/polyfill-iconv": "^1.0",
+                "symfony/polyfill-intl-idn": "^1.10",
+                "symfony/polyfill-mbstring": "^1.0"
             },
             "require-dev": {
                 "mockery/mockery": "~0.9.1",
-                "symfony/phpunit-bridge": "~3.3@dev"
+                "symfony/phpunit-bridge": "^3.4.19|^4.1.8"
             },
             "suggest": {
                 "ext-intl": "Needed to support internationalized email addresses",
@@ -2429,7 +2437,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "6.1-dev"
+                    "dev-master": "6.2-dev"
                 }
             },
             "autoload": {
@@ -2457,7 +2465,7 @@
                 "mail",
                 "mailer"
             ],
-            "time": "2018-09-11T07:12:52+00:00"
+            "time": "2019-04-21T09:21:45+00:00"
         },
         {
             "name": "swiggles/memcache",
@@ -2512,16 +2520,16 @@
         },
         {
             "name": "symfony/console",
-            "version": "v4.2.3",
+            "version": "v4.2.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/console.git",
-                "reference": "1f0ad51dfde4da8a6070f06adc58b4e37cbb37a4"
+                "reference": "e2840bb38bddad7a0feaf85931e38fdcffdb2f81"
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-                "reference": "1f0ad51dfde4da8a6070f06adc58b4e37cbb37a4",
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+                "reference": "e2840bb38bddad7a0feaf85931e38fdcffdb2f81",
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             "require": {
@@ -2580,7 +2588,7 @@
             ],
             "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
-            "time": "2019-01-25T14:35:16+00:00"
+            "time": "2019-04-08T14:23:48+00:00"
         },
         {
             "name": "symfony/contracts",
@@ -2652,7 +2660,7 @@
         },
         {
             "name": "symfony/css-selector",
-            "version": "v4.2.3",
+            "version": "v4.2.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/css-selector.git",
@@ -2705,16 +2713,16 @@
         },
         {
             "name": "symfony/debug",
-            "version": "v4.2.3",
+            "version": "v4.2.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/debug.git",
-                "reference": "cf9b2e33f757deb884ce474e06d2647c1c769b65"
+                "reference": "2d279b6bb1d582dd5740d4d3251ae8c18812ed37"
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@@ -2757,20 +2765,20 @@
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             "description": "Symfony Debug Component",
             "homepage": "https://symfony.com",
-            "time": "2019-01-25T14:35:16+00:00"
+            "time": "2019-04-11T11:27:41+00:00"
         },
         {
             "name": "symfony/event-dispatcher",
-            "version": "v4.2.3",
+            "version": "v4.2.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/event-dispatcher.git",
-                "reference": "bd09ad265cd50b2b9d09d65ce6aba2d29bc81fe1"
+                "reference": "fbce53cd74ac509cbe74b6f227622650ab759b02"
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@@ -2821,20 +2829,20 @@
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             "description": "Symfony EventDispatcher Component",
             "homepage": "https://symfony.com",
-            "time": "2019-01-16T20:35:37+00:00"
+            "time": "2019-04-06T13:51:08+00:00"
         },
         {
             "name": "symfony/finder",
-            "version": "v4.2.3",
+            "version": "v4.2.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/finder.git",
-                "reference": "ef71816cbb264988bb57fe6a73f610888b9aa70c"
+                "reference": "e45135658bd6c14b61850bf131c4f09a55133f69"
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             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/finder/zipball/ef71816cbb264988bb57fe6a73f610888b9aa70c",
-                "reference": "ef71816cbb264988bb57fe6a73f610888b9aa70c",
+                "url": "https://api.github.com/repos/symfony/finder/zipball/e45135658bd6c14b61850bf131c4f09a55133f69",
+                "reference": "e45135658bd6c14b61850bf131c4f09a55133f69",
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             },
             "require": {
@@ -2870,20 +2878,20 @@
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             "description": "Symfony Finder Component",
             "homepage": "https://symfony.com",
-            "time": "2019-01-16T20:35:37+00:00"
+            "time": "2019-04-06T13:51:08+00:00"
         },
         {
             "name": "symfony/http-foundation",
-            "version": "v4.2.3",
+            "version": "v4.2.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/http-foundation.git",
-                "reference": "8d2318b73e0a1bc75baa699d00ebe2ae8b595a39"
+                "reference": "1ea878bd3af18f934dedb8c0de60656a9a31a718"
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@@ -2924,20 +2932,20 @@
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-            "time": "2019-01-29T09:49:29+00:00"
+            "time": "2019-05-01T08:36:31+00:00"
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             "name": "symfony/http-kernel",
-            "version": "v4.2.3",
+            "version": "v4.2.8",
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                 "type": "git",
                 "url": "https://github.com/symfony/http-kernel.git",
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@@ -3013,20 +3021,20 @@
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             "description": "Symfony HttpKernel Component",
             "homepage": "https://symfony.com",
-            "time": "2019-02-03T12:47:33+00:00"
+            "time": "2019-05-01T13:31:08+00:00"
         },
         {
             "name": "symfony/polyfill-ctype",
-            "version": "v1.10.0",
+            "version": "v1.11.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-ctype.git",
-                "reference": "e3d826245268269cd66f8326bd8bc066687b4a19"
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@@ -3038,7 +3046,7 @@
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                 "branch-alias": {
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