diff --git a/composer.json b/composer.json
index 3719e2a..77f32eb 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
         "ext-json": "*",
         "guzzlehttp/guzzle": "~6.3",
         "jms/serializer": "~0.12 || ~1.4.2",
-        "symfony/validator": "~2.8|~3.4|~4.0",
+        "symfony/validator": "~2.8|~3.0|~4.0",
         "doctrine/cache": "~1.6",
         "psr/log": "~1.0"
     },