diff --git a/src/aleph/sdk/types.py b/src/aleph/sdk/types.py
index e76aedbc..c683c7be 100644
--- a/src/aleph/sdk/types.py
+++ b/src/aleph/sdk/types.py
@@ -309,7 +309,7 @@ class Ports(BaseModel):
     ports: Dict[int, PortFlags]
 
 
-AllForwarders = RootModel[Dict[ItemHash, Ports]]
+AllForwarders = RootModel[Dict[ItemHash, Ports | None]]
 
 
 class DictLikeModel(BaseModel):