diff --git a/composer.json b/composer.json
index f1e3bd4..1eb78dd 100644
--- a/composer.json
+++ b/composer.json
@@ -12,10 +12,11 @@
     "minimum-stability": "dev",
     "require": {
             "php": ">=5.5.9",
-            "illuminate/contracts": "5.0.*|5.1.*",
-            "illuminate/support": "5.0.*|5.1.*",
+            "illuminate/contracts": "5.0.*|5.1.*|5.2.*|5.3.*",
+            "illuminate/support": "5.0.*|5.1.*|5.2.*|5.3.*",
             "mautic/api-library": "^2.1",
-            "guzzlehttp/guzzle": "^6.2"
+            "guzzlehttp/guzzle": "^6.2",
+            "graham-campbell/manager": "^2.0"
         },
     "autoload": {
         "psr-4": {