diff --git a/src/specklepy/core/api/models/current.py b/src/specklepy/core/api/models/current.py
index 549c4c4..0fdccd0 100644
--- a/src/specklepy/core/api/models/current.py
+++ b/src/specklepy/core/api/models/current.py
@@ -126,7 +126,7 @@ class Version(BaseModel):
 
 
 class Model(BaseModel):
-    author: LimitedUser
+    author: Optional[LimitedUser]
     createdAt: datetime
     description: Optional[str]
     displayName: str