diff --git a/api/composer.json b/api/composer.json
index 65f65522..10d6da5c 100644
--- a/api/composer.json
+++ b/api/composer.json
@@ -14,7 +14,7 @@
   },
   "require": {
     "phpmailer/phpmailer": "^5.2",
-    "mailgun/mailgun-php": "^2.1",
+    "mike-koch/mailgun-php": "^2.1",
     "php-http/guzzle6-adapter": "^1.1",
     "php-http/message": "^1.5",
     "php-http/curl-client": "^1.7",