diff --git a/composer.json b/composer.json
index ab9379b..e07a3c6 100644
--- a/composer.json
+++ b/composer.json
@@ -9,6 +9,12 @@
             "email": "tim@nexmo.com",
             "role": "Developer",
             "homepage": "http://twitter.com/tjlytle"
+        },
+        {
+            "name": "Michael Heap",
+            "email": "michael.heap@nexmo.com",
+            "role": "Developer",
+            "homepage": "http://twitter.com/mheap"
         }
     ],
     "support": {
@@ -16,7 +22,7 @@
     },
     "require": {
         "illuminate/support": "^5.2",
-        "nexmo/client": "0.4.0"
+        "nexmo/client": "^1.0"
     },
     "autoload": {
         "psr-4": {