diff --git a/src/backend/schema/endpoints/proxy-hosts.json b/src/backend/schema/endpoints/proxy-hosts.json
index af87c467..a53b8142 100644
--- a/src/backend/schema/endpoints/proxy-hosts.json
+++ b/src/backend/schema/endpoints/proxy-hosts.json
@@ -25,7 +25,7 @@
     "forward_host": {
       "type": "string",
       "minLength": 1,
-      "maxLength": 50
+      "maxLength": 253
     },
     "forward_port": {
       "type": "integer",