diff --git a/README.md b/README.md
index cdc0e18..e3b30de 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ $ composer require labs64/netlicensingclient-php
 ```
 {
     "require": {
-        "labs64/netlicensingclient-php": "^2.3.9"
+        "labs64/netlicensingclient-php": "^2.4.0"
     }
 }
 ```