diff --git a/ninja/orm/fields.py b/ninja/orm/fields.py
index f180c417..a0c50341 100644
--- a/ninja/orm/fields.py
+++ b/ninja/orm/fields.py
@@ -89,6 +89,7 @@ def __get_pydantic_json_schema__(cls, schema, handler):
                 int: "integer",
                 str: "string",
                 float: "number",
+                UUID: "string",
             }[type_]
             return {"type": json_type}