diff --git a/composer.json b/composer.json
index a70dac8..0c1b86c 100644
--- a/composer.json
+++ b/composer.json
@@ -13,17 +13,17 @@
     ],
     "require": {
         "php": ">=5.3.3",
-        "symfony/config": ">=2.6 <=3.0"
+        "symfony/config": "~2.6|~3.0"
     },
     "require-dev": {
         "phpunit/phpunit": "~4.7",
         "doctrine/common": "~2.3",
         "doctrine/doctrine-bundle": "~1.2",
-        "symfony/framework-bundle": ">=2.6 <=3.0",
-        "symfony/validator": ">=2.6 <=3.0",
-        "symfony/finder": ">=2.6 <=3.0",
-        "symfony/form": ">=2.6 <=3.0",
-        "symfony/browser-kit": ">=2.6 <=3.0"
+        "symfony/framework-bundle": "~2.6|~3.0",
+        "symfony/validator": "~2.6|~3.0",
+        "symfony/finder": "~2.6|~3.0",
+        "symfony/form": "~2.6|~3.0",
+        "symfony/browser-kit": "~2.6|~3.0"
     },
     "suggest": {
         "guzzlehttp/guzzle": "We can use Guzzle >= 6.0 to fetch feed - set 'driver' to 'guzzle' then",