diff --git a/composer.json b/composer.json
index a576253..b31d446 100644
--- a/composer.json
+++ b/composer.json
@@ -8,16 +8,16 @@
     },
     "require": {
         "php": ">=5.3.3",
-        "symfony/symfony": "2.3.*",
-        "doctrine/orm": ">=2.2.3,<2.4-dev",
-        "doctrine/doctrine-bundle": "1.2.*",
-        "twig/extensions": "1.0.*",
-        "symfony/assetic-bundle": "2.3.*",
-        "symfony/swiftmailer-bundle": "2.3.*",
-        "symfony/monolog-bundle": "2.3.*",
-        "sensio/distribution-bundle": "2.3.*",
-        "sensio/framework-extra-bundle": "2.3.*",
-        "sensio/generator-bundle": "2.3.*",
+        "symfony/symfony": "~2.4",
+        "doctrine/orm": "~2.2,>=2.2.3",
+        "doctrine/doctrine-bundle": "~1.2",
+        "twig/extensions": "~1.0",
+        "symfony/assetic-bundle": "~2.3",
+        "symfony/swiftmailer-bundle": "~2.3",
+        "symfony/monolog-bundle": "~2.4",
+        "sensio/distribution-bundle": "~2.3",
+        "sensio/framework-extra-bundle": "~3.0",
+        "sensio/generator-bundle": "~2.3",
         "incenteev/composer-parameter-handler": "~2.0",
         "friendsofsymfony/rest-bundle": "~1.1",
         "jms/serializer-bundle": "@dev",