diff --git a/composer.json b/composer.json
index c0ad21c..267aa50 100644
--- a/composer.json
+++ b/composer.json
@@ -5,7 +5,7 @@
   "require": {
     "php": ">=7.1",
     "guzzlehttp/guzzle": "^6.2",
-    "jane/open-api": "^1.3",
+    "jane/open-api": "1.3",
     "php-http/guzzle6-adapter": "^1.1"
   },
   "require-dev": {