Update composer.json

Author: canvural

Diff for: composer.json

@@ -15,7 +15,7 @@
         "cebe/php-openapi": "^1.7",
         "fakerphp/faker": "^1.20",
         "league/openapi-psr7-validator": "^0.18",
-        "thecodingmachine/safe": "^1.3"
+        "thecodingmachine/safe": "^2.1.2"
     },
     "require-dev": {
         "doctrine/coding-standard": "^9",