diff --git a/composer.json b/composer.json
index fcdfaec..afad595 100644
--- a/composer.json
+++ b/composer.json
@@ -15,15 +15,20 @@
             "role": "Project Founder"
         }
     ],
-    "minimum-stability": "dev",
     "require": {
         "php": ">=5.5.21",
-        "radphp/utility": "dev-master",
-        "radphp/core": "dev-master"
+        "radphp/utility": "~0.2",
+        "radphp/core": "~0.2"
     },
     "autoload": {
         "psr-4": {
             "Rad\\DependencyInjection\\": "."
         }
+    },
+    "minimum-stability": "dev",
+    "extra": {
+        "branch-alias": {
+            "dev-master": "0.2-dev"
+        }
     }
 }