diff --git a/composer.json b/composer.json
index 216b86b..54f3e17 100644
--- a/composer.json
+++ b/composer.json
@@ -36,10 +36,10 @@
   "require": {
     "php": ">=5.5",
     "guzzlehttp/guzzle": "^6.0",
-    "symfony/validator": "^2.7",
+    "symfony/validator": "^2.3|^3.0",
     "doctrine/annotations": "^1.2",
     "doctrine/cache": "^1.5",
-    "symfony/property-access": "^2.7",
+    "symfony/property-access": "^2.3|^3.0",
     "jms/serializer": "~0.11|~1.0"
   },
   "require-dev": {