diff --git a/composer.json b/composer.json
index b198ee1..d69968d 100644
--- a/composer.json
+++ b/composer.json
@@ -15,16 +15,16 @@
         }
     ],
     "require": {
-        "symfony/framework-bundle": "2.1.*",
-        "symfony/twig-bundle": "2.1.*",
-        "symfony/form": "2.1.*",
+        "symfony/framework-bundle": ">=2.1,<2.3-dev",
+        "symfony/twig-bundle": ">=2.1,<2.3-dev",
+        "symfony/form": ">=2.1,<2.3-dev",
         "dflydev/markdown": "1.0.*"
     },
     "require-dev": {
-        "symfony/css-selector": "2.1.*",
-        "symfony/browser-kit": "2.1.*",
-        "symfony/validator": "2.1.*",
-        "symfony/yaml": "2.1.*",
+        "symfony/css-selector": ">=2.1,<2.3-dev",
+        "symfony/browser-kit": ">=2.1,<2.3-dev",
+        "symfony/validator": ">=2.1,<2.3-dev",
+        "symfony/yaml": ">=2.1,<2.3-dev",
         "friendsofsymfony/rest-bundle": "dev-master",
         "jms/serializer-bundle": "0.9.*"
     },