diff --git a/libs/checkpoint-postgres/langgraph/checkpoint/postgres/base.py b/libs/checkpoint-postgres/langgraph/checkpoint/postgres/base.py
index 6dc1eabb0..3ebafa6e1 100644
--- a/libs/checkpoint-postgres/langgraph/checkpoint/postgres/base.py
+++ b/libs/checkpoint-postgres/langgraph/checkpoint/postgres/base.py
@@ -248,7 +248,7 @@ class BasePostgresSaver(BaseCheckpointSaver[str]):
 
     def _load_blobs(
         self,
-        blob_values: Any,
+        blob_values: Sequence[tuple[bytes, bytes, bytes]],
     ) -> dict[str, Any]:
         if not blob_values:
             return {}