diff --git a/composer.json b/composer.json
index 4a9aa0e..ab93614 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
         }
     },
     "require": {
-        "globalpayments/php-sdk": "3.0.2",
+        "globalpayments/php-sdk": "2.3.13",
         "psr/log": "^1.1"
     },
     "require-dev": {