diff --git a/opensearch-master/config.json b/opensearch-master/config.json
index dbe5d9e..4f55fa3 100644
--- a/opensearch-master/config.json
+++ b/opensearch-master/config.json
@@ -64,7 +64,7 @@
     "path_data": "str",
     "path_logs": "str",
     "security_enabled": "bool",
-    "admin_password": "password?"
+    "admin_password": "password"
   },
   "ports": {
     "9200/tcp": 9200,