diff --git a/composer.json b/composer.json
index d216ea3a..d643a601 100644
--- a/composer.json
+++ b/composer.json
@@ -5,15 +5,15 @@
     "license": "MIT",
     "type": "project",
     "require": {
-        "php": ">=5.5.9",
-        "laravel/framework": "5.2.*"
+        "php": ">=5.6.4",
+        "laravel/framework": "5.3.*"
     },
     "require-dev": {
         "fzaninotto/faker": "~1.4",
         "mockery/mockery": "0.9.*",
-        "phpunit/phpunit": "~4.0",
-        "symfony/css-selector": "2.8.*|3.0.*",
-        "symfony/dom-crawler": "2.8.*|3.0.*"
+        "phpunit/phpunit": "~5.0",
+        "symfony/css-selector": "3.1.*",
+        "symfony/dom-crawler": "3.1.*"
     },
     "autoload": {
         "classmap": [
@@ -48,5 +48,7 @@
     },
     "config": {
         "preferred-install": "dist"
-    }
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true
 }