diff --git a/composer.json b/composer.json
index 029b32e..05757cc 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
     ],
     "require": {
         "php": ">=5.5.9",
-        "illuminate/queue": "~5.1"
+        "illuminate/queue": "~5.1 <5.6"
     },
     "autoload": {
         "psr-4": {