upd deps.

Author: makasim

composer.json

@@ -6,15 +6,15 @@
     "license": "MIT",
     "require": {
         "php": ">=5.6",
-        "symfony/framework-bundle": "^2.8|^3",
-        "symfony/console": "^2.8|^3",
-        "enqueue/enqueue-bundle": "^0.7@dev|^0.8@dev",
-        "php-quartz/bridge": "^0.1@dev"
+        "symfony/framework-bundle": "^3|^4",
+        "symfony/console": "^3|^4",
+        "enqueue/enqueue-bundle": "^0.8",
+        "php-quartz/bridge": "^0.1"
     },
     "require-dev": {
-        "phpunit/phpunit": "~5.5",
-        "symfony/browser-kit": "^2.8|^3",
-        "enqueue/null": "^0.7@dev|^0.8@dev"
+        "phpunit/phpunit": "^5.5",
+        "symfony/browser-kit": "^3|^4",
+        "enqueue/null": "^0.8"
     },
     "autoload": {
         "psr-4": { "Quartz\\Bundle\\": "" },