diff --git a/composer.json b/composer.json
index e0c2648..35426ed 100644
--- a/composer.json
+++ b/composer.json
@@ -52,7 +52,8 @@
         "wikimedia/less.php": "^3.2.1",
         "simshaun/recurr": "^5",
         "dragonmantank/cron-expression": "^3",
-        "psr/log": "^1"
+        "psr/log": "^1",
+        "zircote/swagger-php": "^5.1.4"
     },
     "require-dev": {
     },