diff --git a/tipg/resources/response.py b/tipg/resources/response.py
index 0640231b..73b4a185 100644
--- a/tipg/resources/response.py
+++ b/tipg/resources/response.py
@@ -4,6 +4,7 @@
 from typing import Any
 
 import orjson
+from asyncpg.pgproto import pgproto
 
 from fastapi.responses import JSONResponse
 
@@ -12,6 +13,8 @@ def default(obj):
     """Instruct orjson what to do with types it does not natively serialize"""
     if isinstance(obj, decimal.Decimal):
         return str(obj)
+    elif isinstance(obj, pgproto.UUID):
+        return str(obj)
 
 
 def orjsonDumps(content: Any):