diff --git a/src/dispatch/data/source/models.py b/src/dispatch/data/source/models.py
index d5287cc5e8a4..4da919d110af 100644
--- a/src/dispatch/data/source/models.py
+++ b/src/dispatch/data/source/models.py
@@ -1,5 +1,5 @@
 from datetime import datetime
-from pydantic import Field, AnyHttpUrl
+from pydantic import Field, AnyHttpUrl, field_serializer
 
 from sqlalchemy import (
     JSON,
@@ -107,6 +107,10 @@ class Link(DispatchBase):
     description: str | None = None
     href: AnyHttpUrl | None
 
+    @field_serializer("href")
+    def serialize_href(self, href: AnyHttpUrl, _info):
+        return str(href)
+
 
 # Pydantic models
 class SourceBase(DispatchBase):