diff --git a/composer.json b/composer.json
index b17e94f..986c956 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
   ],
   "require": {
     "php": ">=7.0",
-    "silverstripe-terraformers/openapi-codegen-php-8": "dev-master",
+    "silverstripe-terraformers/openapi-codegen-php-8": "^1.0.5",
     "psr/log": "^1.0."
   },
   "require-dev": {