diff --git a/sslyze/json/json_output.py b/sslyze/json/json_output.py
index a6812a6e..f3749f42 100644
--- a/sslyze/json/json_output.py
+++ b/sslyze/json/json_output.py
@@ -101,7 +101,7 @@ def from_orm(cls, all_scan_commands_attempts: AllScanCommandsAttempts) -> "AllSc
 
 
 # Identical fields in the JSON output
-class _HttpProxySettingsAsJson(pydantic.BaseModel):
+class _HttpProxySettingsAsJson(_BaseModelWithOrmModeAndForbid):
     hostname: str
     port: int