Updates composer json

Author: leightonthomas

composer.json

@@ -18,8 +18,8 @@
         "symfony/security": "^2.8|^3.0",
         "symfony/options-resolver": "^2.8|^3.0",
         "ircmaxell/random-lib": "~1.0",
-        "symfony/dependency-injection": "^3.3",
-        "symfony/config": "^3.3"
+        "symfony/dependency-injection": "^2.7|^3.3",
+        "symfony/config": "^2.7|^3.3"
     },
     "require-dev": {
         "phpspec/phpspec": "~2.0"